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Nearctic Syrphidae Checklist

Introduction

We have compiled a list of 813 Nearctic Syrphidae species from the literature and from specimens in several collections (including the Canadian National Collection of Insects, American Museum of Natural History, Lyman Insect Collection, Royal British Columbia Museum, Royal Ontario Museum, United States National Museum, University of Alberta Strickland Entomological Museum, University of British Columbia Spenser Museum, University of Guelph Insect Collection,Wouter van Steenis personal collection). If you have data or corrections that you would like to add to this initiative, please contact Jeff Skevington.

In addition to maintaining an updated checklist for the region, this site serves as a repository for common names for Syrphidae. We are in the process of formulating proposals for common names for these flies. We intend to regularly update this list of proposed names on this page, along with attribution as to who has 'invented' the name. We encourage discussion of these proposals along with proposals of your own. Note that this is only the second draft and we are keen to hear your suggestions! Please send all discussion and newly proposed names to Jeff Skevington. You will be credited for inventing the name if we choose to use your submission! These names will be used in the Field Guide to Northeastern Nearctic Flower Flies and once the names have gelled (perhaps late 2015), we will submit them to the Entomological Society of America for indexing to encourage long term stability.

Checklist of Nearctic Syrphidae
Sorted by genus. Largely based on Chris Thompson's Diptera Nomenclator with a few personal tweaks based on our ongoing phylogenetic research.
Scientific Name Proposed English Common Name Name Proposed By
Alipumilio nigrocoeruleus Vockeroth, 1964 Blue-black Bulldog Fly Skevington, Locke and Young
Allograpta (Allograpta) exotica (Wiedemann 1830) Exotic Streaktail Skevington, Locke and Young
Allograpta (Allograpta) obliqua (Say 1823) Oblique Streaktail Locke, Young and Skevington
Allograpta (Allograpta) radiata (Bigot 1857) Y-shaped Streaktail Skevington, Locke and Young
Anasimyia bilinearis (Williston 1887) Two-lined Swamp Fly Locke, Young and Skevington
Anasimyia chrysostomus (Wiedemann 1830) Lump-legged Swamp Fly Locke, Young and Skevington
Anasimyia distinctus (Williston 1887) Short-spurred Swamp Fly Locke, Young and Skevington
Anasimyia grisescens (Hull 1943) Long-spurred Swamp Fly Skevington, Locke and Young
Anasimyia lunulatus (Meigen 1822) Moon-shaped Swamp Fly Locke, Young and Skevington
Anasimyia perfidiosus (Hunter 1897) Treacherous Swamp Fly Locke, Young and Skevington
Arctosyrphus willingii (Smith 1912) Canadian Longbeak Skevington
Asemosyrphus polygrammus (Loew 1872) Common Sickleleg Locke, Young and Skevington
Baccha  elongata (Fabricius 1775) Common Dainty Locke, Young and Skevington
Blera  analis (Macquart 1842) Orange-tailed Wood Fly Locke, Young and Skevington
Blera  armillata (Osten Sacken 1875) Orange-faced Wood Fly Locke, Young and Skevington
Blera  badia (Walker 1849) Common Wood Fly Locke, Young and Skevington
Blera  confusa Johnson 1913 Confusing Wood Fly Locke, Young and Skevington
Blera  flukei (Curran 1953) Red-cheeked Wood Fly Locke, Young and Skevington
Blera  garretti (Curran 1924) Garrett's Wood Fly Locke, Young and Skevington
Blera  humeralis (Williston 1882) Yellow-legged Wood Fly Skevington, Locke and Young
Blera  johnsoni (Coquillett 1894) Yellow-backed Wood Fly Skevington, Locke and Young
Blera  metcalfi (Curran 1925) Metcalf's Wood Fly Skevington, Locke and Young
Blera  nigra (Williston 1887) Golden-haired Wood Fly Locke, Young and Skevington
Blera  nigripes (Curran 1925) Black-haired Wood Fly Locke, Young and Skevington
Blera  notata (Wiedemann 1830) Ornate Wood Fly Skevington, Locke and Young
Blera  pictipes (Bigot 1884) Painted Wood Fly Locke, Young and Skevington
Blera  robusta (Curran 1922) Greenish Wood Fly Locke, Young and Skevington
Blera  scitula (Williston 1882) Western Wood Fly Locke, Young and Skevington
Blera  umbratilis (Williston 1887) Hairy Wood Fly Locke, Young and Skevington
Brachyopa (Brachyopa) cinereovittata Bigot 1884 Grey-striped Sapeater Locke, Young and Skevington
Brachyopa (Brachyopa) cynops Snow 1892 Matt-tailed Sapeater Skevington, Locke and Young
Brachyopa (Brachyopa) daeckei Johnson 1917 Black-tailed Sapeater Skevington, Locke and Young
Brachyopa (Brachyopa) diversa Johnson 1917 Pale-striped Sapeater Locke, Young and Skevington
Brachyopa (Brachyopa) flavescens Shannon 1915 Yellow Sapeater Locke, Young and Skevington
Brachyopa (Brachyopa) gigas Lovett 1919 Giant Sapeater Locke, Young and Skevington
Brachyopa (Brachyopa) notata Osten Sacken 1875 Bald-striped Sapeater Locke, Young and Skevington
Brachyopa (Brachyopa) perplexa Curran 1922 Hairy-striped Sapeater Locke, Young and Skevington
Brachyopa (Brachyopa) punctipennis Curran 1925 Spot-winged Sapeater Locke, Young and Skevington
Brachyopa (Brachyopa) rufiabdominalis Jones 1917 Red-tailed Sapeater Locke, Young and Skevington
Brachyopa (Brachyopa) vacua Osten Sacken 1875 Yellow-spotted Sapeater Locke, Young and Skevington
Brachypalpus (Brachypalpus) oarus (Walker 1849) Eastern Catkin Fly Skevington, Locke and Young
Brachypalpus (Crioprora) alopex (Osten Sacken 1877) Bumblebee Catkin Fly Skevington, Locke and Young
Brachypalpus (Crioprora) amithaon (Walker 1849) Carolina Catkin Fly Skevington, Locke and Young
Brachypalpus (Crioprora) cyanella Osten Sacken 1877 Longnose Catkin Fly Skevington, Locke and Young
Brachypalpus (Crioprora) cyanogaster Loew 1872 Bluebottle Catkin Fly Skevington, Locke and Young
Brachypalpus (Crioprora) femorata (Williston 1882) Grasshopper Catkin Fly Skevington, Locke and Young
Callicera  duncani Curran 1935 Orange-legged Pine Fly Skevington, Locke and Young
Callicera  erratica (Walker 1849) Golden Pine Fly Locke, Young and Skevington
Callicera  montensis Snow 1892 Firey Pine Fly Skevington, Locke and Young
Ceriana (Ceriana) abbreviata Loew 1864 Northern Wasp Fly Locke, Young and Skevington
Ceriana (Ceriana) ancoralis (Coquillett 1902)    
Ceriana (Ceriana) mime (Hull 1935) Ivory-ringed Wasp Fly Scott King
Ceriana (Ceriana) pictula (Loew 1853)    
Ceriana (Ceriana) snowi (Adams 1904)    
Ceriana (Ceriana) tridens (Loew 1872)    
Ceriana (Monoceromyia) floridensis (Shannon 1922)    
Ceriana (Polybiomyia) bellardii (Shannon 1925)    
Ceriana (Polybiomyia) engelhardti (Shannon 1925)    
Ceriana (Polybiomyia) macquarti (Shannon 1925)    
Ceriana (Polybiomyia) pedicellata (Williston 1887)    
Ceriana (Polybiomyia) sayi (Shannon 1925)    
Ceriana (Polybiomyia) schnablei (Williston 1892)    
Ceriana (Polybiomyia) signifera (Loew 1853)    
Ceriana (Polybiomyia) townsendi (Snow 1895)    
Ceriana (Sphiximorpha) cylindrica (Curran 1921)    
Ceriana (Sphiximorpha) durani (Davidson 1925)    
Ceriana (Sphiximorpha) loewii (Williston 1887) Loew's Wasp Fly Skevington, Locke and Young
Ceriana (Sphiximorpha) willistoni (Kahl 1897) Williston's Wasp Fly Locke, Young and Skevington
Chalcosyrphus (Chalcosyrphus) aristatus (Johnson 1929) Black-dented Forest Fly Skevington, Locke and Young
Chalcosyrphus (Chalcosyrphus) depressus (Shannon 1925) Charcoal-dented Forest Fly Locke, Young and Skevington
Chalcosyrphus (Neplas) pauxilla (Williston 1892) Yellow-waisted Forest Fly Skevington, Locke and Young
Chalcosyrphus (Xylotomima) anomalus (Shannon 1925) Long-tailed Forest Fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) anthreas (Walker 1849) Yellow-banded Forest Fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) chalybeus (Wiedemann 1830) Black-winged forest fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) curvaria (Curran 1941) Yellow-haltered Forest Fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) dubius (Shannon 1926) Onyx-spotted Forest Fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) flexus (Curran 1941) Clear-winged Forest Fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) inarmatus (Hunter 1897) Yellow-haired Forest Fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) libo (Walker 1849) Long-haired Forest Fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) metallicus (Wiedemann 1830) Yellow-legged Forest Fly Skevington, Locke and Young
Chalcosyrphus (Xylotomima) metallifer (Bigot 1884) Pilose-winged Forest Fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) nemorum (Fabricius 1805) Dusky-banded Forest Fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) nigromaculatus (Jones 1917) Black-spotted Forest Fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) ontario (Curran 1941) Bare-winged Forest Fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) parvus (Williston 1887) Coal-spotted Forest Fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) piger (Fabricius 1794) Short-haired Forest Fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) plesia (Curran 1925) Black-hipped Forest Fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) sacawajeae (Shannon 1926) Brown-aristate Forest Fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) satanica (Bigot 1884) Devil's Forest Fly Locke, Young and Skevington
Chalcosyrphus (Xylotomima) vecors (Osten Sacken 1875) Orange-hipped Forest Fly Locke, Young and Skevington
Cheilosia alaskensis (Hunter 1897) Alaskan Pollen Fly Locke, Young and Skevington
Cheilosia aldrichi (Hunter 1896) Aldrich's Pollen Fly Skevington, Locke and Young
Cheilosia atrocapilla (Hull & Fluke 1950) Yellow-haired Pollen Fly Skevington, Locke and Young
Cheilosia bardus (Harris 1780) Dusky-wing Pollen Fly Skevington, Locke and Young
Cheilosia baroni (Williston 1887) Baron's Pollen Fly Skevington, Locke and Young
Cheilosia bicolorata (Shannon 1922) Charcoal Pollen Fly Skevington, Locke and Young
Cheilosia bigelowi (Curran 1926) Bigelow's Pollen Fly Locke, Young and Skevington
Cheilosia borealis (Coquillett 1900) Slate Pollen Fly Locke, Young and Skevington
Cheilosia browni Curran 1931 Brown's Pollen Fly Locke, Young and Skevington
Cheilosia burkei (Shannon 1922) Burke's Pollen Fly Locke, Young and Skevington
Cheilosia caltha (Shannon 1922) Marsh Marigold Pollen Fly Locke, Young and Skevington
Cheilosia canada Hull & Fluke 1950 Canadian Pollen Fly Skevington, Locke and Young
Cheilosia capillata (Loew 1863) Yellow-legged Pollen Fly Locke, Young and Skevington
Cheilosia catalina (Shannon 1922) Catalins Mountains Pollen Fly Skevington, Locke and Young
Cheilosia chalybescens (Williston 1893) Indigo Pollen Fly Locke, Young and Skevington
Cheilosia chintimini (Lovett 1921) Chintimini Pollen Fly Skevington, Locke and Young
Cheilosia chrysochlamys (Williston 1891) Golden-mantled Pollen Fly Skevington, Locke and Young
Cheilosia coerulea Fluke & Hull 1946 Sable Pollen Fly Skevington, Locke and Young
Cheilosia columbiae (Curran 1922) Columbia Pollen Fly Locke, Young and Skevington
Cheilosia comosa (Loew 1863) Sooty Pollen Fly Locke, Young and Skevington
Cheilosia consentiens (Curran 1926) Onxy Pollen Fly Locke, Young and Skevington
Cheilosia cottrelli Telford 1939 Cottrell's Pollen Fly Locke, Young and Skevington
Cheilosia cratorhina Hull & Fluke 1950 Strong-nosed Pollen Fly Skevington, Locke and Young
Cheilosia cynoprosopa Hull & Fluke 1950 Dark-faced Pollen Fly Skevington, Locke and Young
Cheilosia ferruginea (Lovett 1919) Long-faced Pollen Fly Skevington, Locke and Young
Cheilosia flavosericea Hull & Fluke 1950 Yellow-silky Pollen Fly Locke, Young and Skevington
Cheilosia florella (Shannon 1922) Shadowy Pollen Fly Skevington, Locke and Young
Cheilosia hermiona Hull & Fluke 1950 Murky Pollen Fly Skevington, Locke and Young
Cheilosia hesperia (Shannon 1922) Evening Pollen Fly Locke, Young and Skevington
Cheilosia hiantha Hull & Fluke 1950 Melanistic Pollen Fly Skevington, Locke and Young
Cheilosia hoodiana (Bigot 1884) Mount Hood Pollen Fly Locke, Young and Skevington
Cheilosia hunteri (Curran 1922) Hunter's Pollen Fly Locke, Young and Skevington
Cheilosia julietta (Shannon 1922) Juliette's Pollen Fly Skevington, Locke and Young
Cheilosia laevis (Bigot 1884) Jet Pollen Fly Locke, Young and Skevington
Cheilosia lasiophthalmus Williston 1882 Saffron-haired Pollen Fly Locke, Young and Skevington
Cheilosia latrans (Walker 1849) Steely Pollen Fly Locke, Young and Skevington
Cheilosia leucoparea (Loew 1863) Dusky Pollen Fly Skevington, Locke and Young
Cheilosia livida (Wehr 1924) Blond Pollen Fly Locke, Young and Skevington
Cheilosia lucta (Snow 1895) Drab Pollen Fly Locke, Young and Skevington
Cheilosia luna Hull & Fluke 1950 Midnight Pollen Fly Skevington, Locke and Young
Cheilosia margarita Hull & Fluke 1950 Foggy Pollen Fly Skevington, Locke and Young
Cheilosia meganosa Hull & Fluke 1950 Big-nosed Pollen Fly Skevington, Locke and Young
Cheilosia megatarsa Fluke & Hull 1947 Large-footed Pollen Fly Skevington, Locke and Young
Cheilosia montanipes Hull & Fluke 1950 Montane Pollen Fly Skevington, Locke and Young
Cheilosia nannomorpha Hull & Fluke 1950 Small Pollen Fly Skevington, Locke and Young
Cheilosia nasica Hull & Fluke 1950 Large-nosed Pollen Fly Skevington, Locke and Young
Cheilosia nigresens Hull & Fluke 1950 Dark Pollen Fly Skevington, Locke and Young
Cheilosia nigroapicata (Curran 1926) Sunny-haired Pollen Fly Locke, Young and Skevington
Cheilosia nigrobarba Hull & Fluke 1950 Black-bearded Pollen Fly Skevington, Locke and Young
Cheilosia nigrofasciata (Curran 1926) Tarry Pollen Fly Locke, Young and Skevington
Cheilosia nigrovittata (Lovett 1919) Golden-haried Pollen Fly Skevington, Locke and Young
Cheilosia obesa Hull & Fluke 1950 Portly Pollen Fly Locke, Young and Skevington
Cheilosia occidentalis Williston 1882 Western Pollen Fly Skevington, Locke and Young
Cheilosia orilliaenis (Curran 1922) Hairy-striped Pollen Fly Locke, Young and Skevington
Cheilosia pacifica Hunter 1897 Pacific Pollen Fly Skevington, Locke and Young
Cheilosia pagana (Meigen 1822) Rural Pollen Fly Locke, Young and Skevington
Cheilosia pallipes (Loew 1863) Yellow-shouldered Pollen Fly Locke, Young and Skevington
Cheilosia pikei (Shannon 1922) Pike's Pollen Fly Skevington, Locke and Young
Cheilosia pilosipes Hull & Fluke 1950 Clouded Pollen Fly Skevington, Locke and Young
Cheilosia pluto Hull & Fluke 1950 Beige-haired Pollen Fly Locke, Young and Skevington
Cheilosia pontiaca (Shannon 1922) Ebony Pollen Fly Locke, Young and Skevington
Cheilosia porcina Hull & Fluke 1950 Opaque Pollen Fly Skevington, Locke and Young
Cheilosia prima (Hunter 1896) Swarthy Pollen Fly Locke, Young and Skevington
Cheilosia primoveris (Shannon 1915) Shaded Pollen Fly Locke, Young and Skevington
Cheilosia promethea Hull & Fluke 1950 Pitch Pollen Fly Skevington, Locke and Young
Cheilosia punctulata (Hunter 1897) Obscure Pollen Fly Skevington, Locke and Young
Cheilosia rhinoprosopa Hull & Fluke 1950 Mustard-haired Pollen Fly Locke, Young and Skevington
Cheilosia rita (Curran 1922) Inky Pollen Fly Locke, Young and Skevington
Cheilosia robusta (Hine 1922) Robust Pollen Fly Skevington, Locke and Young
Cheilosia scilla Hull & Fluke 1950 Scilla Pollen Fly Skevington, Locke and Young
Cheilosia sensua (Curran 1922) Gloomy Pollen Fly Locke, Young and Skevington
Cheilosia seripila Hull & Fluke 1950 Tawny-haired Pollen Fly Skevington, Locke and Young
Cheilosia shannoni (Curran 1923) Shannon's Pollen Fly Locke, Young and Skevington
Cheilosia sonoriana (Shannon 1922) Graphite Pollen Fly Skevington, Locke and Young
Cheilosia sorrorcula (Williston 1891) Dim Pollen Fly Skevington, Locke and Young
Cheilosia speculum Hull & Fluke 1950 Carbon Pollen Fly Skevington, Locke and Young
Cheilosia subchalybea (Curran 1923) Shiny-headed Pollen Fly Locke, Young and Skevington
Cheilosia swannanoa Brimley 1925 Swannanoa Pollen Fly Skevington, Locke and Young
Cheilosia tantalus Hull & Fluke 1950 Dingy Pollen Fly Skevington, Locke and Young
Cheilosia wisconsinensis Fluke & Hull 1947 Golden-legged Pollen Fly Locke, Young and Skevington
Cheilosia yukonensis (Shannon 1922) Yukon Pollen Fly Locke, Young and Skevington
Chrysogaster antitheus Walker 1849 Short-haired Wrinkle Fly Locke, Young and Skevington
Chrysogaster inflatifrons Shannon 1916 Long-haired Wrinkle Fly Locke, Young and Skevington
Chrysosyrphus alaskensis (Shannon 1922) Alaskan Wrinkle Fly Skevington, Locke and Young
Chrysosyrphus frontosus (Bigot 1884) Black-haired Wrinkle Fly Locke, Young and Skevington
Chrysosyrphus latus (Loew 1863) Yellow-haired Wrinkle Fly Locke, Young and Skevington
Chrysosyrphus nasuta (Zetterstedt 1838) Long-haired Wrinkle Fly Locke, Young and Skevington
Chrysosyrphus nigripennis (Williston 1882) Pale-horned Wrinkle Fly Skevington, Locke and Young
Chrysotoxum aztec Shannon 1926 Aztec Meadow Fly Skevington, Locke and Young
Chrysotoxum chinook Shannon 1926 Chinook Meadow Fly Locke, Young and Skevington
Chrysotoxum coloradense Greene, 1918 Western Meadow Fly Skevington, Locke and Young
Chrysotoxum derivatum Walker 1849 Thin-banded Meadow Fly Locke, Young and Skevington
Chrysotoxum flavifrons Macquart 1842 Blackshield Meadow Fly Locke, Young and Skevington
Chrysotoxum integrum Williston 1887 Flat-faced Meadow Fly Skevington, Locke and Young
Chrysotoxum perplexum Johnson 1924 Greater Black-legged Meadow Fly Locke, Young and Skevington
Chrysotoxum plumeum Loew 1864 Lesser Black-legged Meadow Fly Skevington, Locke and Young
Chrysotoxum pubescens Loew 1864 Yellow-throated Meadow Fly Locke, Young and Skevington
Chrysotoxum radiosum Shannon 1926 Punctate Meadow Fly Locke, Young and Skevington
Chrysotoxum ventricosum Bigot 1884 Cordilleran Meadow Fly Skevington, Locke and Young
Chrysotoxum ypsilon Williston 1887 Southwestern Meadow Fly Skevington, Locke and Young
Copestylum (Copestylum) limbipenne Williston 1887    
Copestylum (Copestylum) marginatum (Say 1829)    
Copestylum (Copestylum) simile Giglio-Tos 1892    
Copestylum (Phalacromya) abdominale (Wiedemann, 1830)    
Copestylum (Phalacromya) anastasia (Hull 1946)    
Copestylum (Phalacromya) anna (Williston 1887) Anna's Bromeliad Fly Skevington, Locke and Young
Copestylum (Phalacromya) apicale (Loew 1866)    
Copestylum (Phalacromya) apiciferum (Townsend 1895)    
Copestylum (Phalacromya) avidum (Osten Sacken 1877) Yellow-spotted Bromeliad Fly Locke, Young and Skevington
Copestylum (Phalacromya) barei (Curran 1925) Violet Bromeliad Fly Skevington, Locke and Young
Copestylum (Phalacromya) caudatum Curran 1927 Hairy-horned Bromeliad Fly Locke, Young and Skevington
Copestylum (Phalacromya) comstocki (Williston 1887) Comstock's Bromeliad Fly Skevington, Locke and Young
Copestylum (Phalacromya) eugenia (Williston 1887)  
Copestylum (Phalacromya) florida (Hull 1941) Florida Bromeliad Fly Skevington, Locke and Young
Copestylum (Phalacromya) fraudulentum (Williston 1891)  
Copestylum (Phalacromya) haagii (Jaennicke 1867) Haag's Bromeliad Fly Skevington, Locke and Young
Copestylum (Phalacromya) isabellina (Williston 1887) Isabelle's Bromeliad Fly Skevington, Locke and Young
Copestylum (Phalacromya) lentum Williston 1887  
Copestylum (Phalacromya) macrocephalum (Giglio-Tos 1892)  
Copestylum (Phalacromya) megacephalum (Loew 1863) Big-headed Bromeliad Fly Skevington, Locke and Young
Copestylum (Phalacromya) mexicanum (Macquart 1842) Mexican Bromeliad Fly Locke, Young and Skevington
Copestylum (Phalacromya) opalescens (Townsend 1901) Opalescent Bromeliad Fly Skevington, Locke and Young
Copestylum (Phalacromya) posticum (Say 1829)  
Copestylum (Phalacromya) quadratum (Williston 1891)  
Copestylum (Phalacromya) satur (Osten Sacken 1877) Spotted-wing Bromeliad Fly Locke, Young and Skevington
Copestylum (Phalacromya) sexmaculatum (Palisot de Beauvois 1819) Six-spotted Bromeliad Fly
Copestylum (Phalacromya) sternale (Curran 1930)  
Copestylum (Phalacromya) tamaulipanum (Townsend 1898)  
Copestylum (Phalacromya) tricinctum (Bigot 1875)  
Copestylum (Phalacromya) vesicularium (Curran 1947) Irridescent Bromeliad Fly Locke, Young and Skevington
Copestylum (Phalacromya) victoria (Williston 1887) Victoria's Bromeliad Fly Skevington, Locke and Young
Copestylum (Phalacromya) violaceum (Say 1829) Purple Bromeliad Fly Skevington, Locke and Young
Copestylum (Phalacromya) vittatum Thompson 1976 Striped Bromeliad Fly Skevington, Locke and Young
Copestylum (Phalacromya) volucre (Giglio-Tos, 1892)    
Copestylum (Volucellosia) fornax (Townsend 1895)  
Criorhina aurea Lovett 1919 Variable Bumblefly Moran
Criorhina bubulcus (Walker 1849) Whiskered Bumblefly Moran
Criorhina caudata Curran 1925 Red-tailed Bumblefly Moran
Criorhina coquilletti Williston 1892 Variable Bumblefly Moran
Criorhina kincaidi Coquillett 1901 Kincaid's Bumblefly Moran
Criorhina lupina (Williston 1882) Yellow Bumblefly Moran
Criorhina nigripes (Williston 1882) Williston's Bumblefly Moran
Criorhina nigriventris Walton 1911 Bare-cheeked Bumblefly Moran
Criorhina tricolor Coquillett 1900 Tricoloured Bumblefly Moran
Criorhina verbosa (Walker 1849) Hairy-cheeked Bumblefly Moran
Cynorhinella bella (Williston 1882) Western Longnose Locke, Young and Skevington
Cynorhinella longinasus Shannon 1924 Eastern Longnose Locke, Young and Skevington
Dasysyrphus amalopis (Osten Sacken 1875) Northern Conifer Fly Locke, Young and Skevington
Dasysyrphus creper (Snow 1895) Arched Conifer Fly Skevington, Locke and Young
Dasysyrphus intrudens (Osten Sacken 1877) Confusing Conifer Fly Locke, Young and Skevington
Dasysyrphus laticaudatus (Curran 1925) Boreal Conifer Fly Locke, Young and Skevington
Dasysyrphus limatus (Hine 1922) Narrow-banded Conifer Fly Locke, Young and Skevington
Dasysyrphus lotus (Williston 1887) Yellow-cheeked Conifer Fly Skevington, Locke and Young
Dasysyrphus nigricornis (Verrall 1873) Arctic Conifer Fly Locke, Young and Skevington
Dasysyrphus occidualis Locke & Skevington 2013 Western Conifer Fly Locke, Young and Skevington
Dasysyrphus pacifica (Curran 1925) Pacific Conifer Fly Locke, Young and Skevington
Dasysyrphus pauxillus (Williston 1887) Montane Conifer Fly Locke, Young and Skevington
Dasysyrphus pinastri (De Geer 1776) Black-spotted Conifer Fly Skevington, Locke and Young
Dasysyrphus richardi Locke & Skevington 2013) Richard's Conifer Fly Skevington, Locke and Young
Dasysyrphus venustus (Meigen 1822) Transverse Conifer Fly Locke, Young and Skevington
Didea alneti (Fallén 1817) Triangular Lucent Locke, Young and Skevington
Didea fuscipes Loew 1863 Undivided Lucent Locke, Young and Skevington
Dideomima coquilletti (Williston 1891) Southern Flower Fly Skevington, Locke and Young
Doros aequalis Loew 1863 Canadian Hilltopper Locke, Young and Skevington
Eosalpingogaster cochenillivorus (Guerin-Meneville 1848) Carmine Cochineal Killer Skevington, Locke and Young
Eosalpingogaster nepenthe (Hull 1943) Florida Cochineal Killer Skevington, Locke and Young
Epistrophe (Epistrophe) grossulariae (Meigen 1822) Black-horned Smoothtail Locke, Young and Skevington
Epistrophe (Epistrophe) metcalfi (Fluke 1933) Black-margined Smoothtail Locke, Young and Skevington
Epistrophe (Epistrophe) nitidicollis (Meigen 1822) Straight-banded Smoothtail Locke, Young and Skevington
Epistrophe (Epistrophe) ochrostoma (Zetterstedt 1849) Hairy-plated Smoothtail Locke, Young and Skevington
Epistrophe (Epistrophe) terminalis (Curran 1925) Bare-plated Smoothtail Locke, Young and Skevington
Epistrophe (Epistrophe) xanthostoma (Williston 1887) Emarginate Smoothtail Locke, Young and Skevington
Epistrophe (Epistrophella) emarginata (Say 1823) Slender Smoothtail Locke, Young and Skevington
Eristalinus (Eristalodes) taeniops (Wiedemann 1818) Stripe-eyed Lagoon Fly Skevington, Locke and Young
Eristalinus (Lathyrophthalmus) aeneus (Scopoli 1763) Common Lagoon Fly Locke, Young and Skevington
Eristalis (Eoseristalis) anthophorina (Fallén 1817) Orange-spotted Drone Fly Locke, Young and Skevington
Eristalis (Eoseristalis) arbustorum (Linnaeus 1758) European Drone Fly Locke, Young and Skevington
Eristalis (Eoseristalis) basilaris Macquart 1834 Georgian Drone Fly Skevington, Locke and Young
Eristalis (Eoseristalis) bellardii Jaennicke 1867 Mexican Mountain Drone Fly Skevington, Locke and Young
Eristalis (Eoseristalis) brousii Williston 1882 Hourglass Drone Fly Locke, Young and Skevington
Eristalis (Eoseristalis) cryptarum (Fabricius 1794) Bog-dwelling Drone Fly Locke, Young and Skevington
Eristalis (Eoseristalis) dimidiata Wiedemann 1830 Black-shouldered Drone Fly Locke, Young and Skevington
Eristalis (Eoseristalis) flavipes Walker 1849 Orange-legged Drone Fly Locke, Young and Skevington
Eristalis (Eoseristalis) fraterculus (Zetterstedt 1838) Black-spotted Drone Fly Locke, Young and Skevington
Eristalis (Eoseristalis) gomojunovae Violovitsh 1977 Arctic Drone Fly Skevington, Locke and Young
Eristalis (Eoseristalis) hirta Loew 1866 Hirsute Drone Fly Locke, Young and Skevington
Eristalis (Eoseristalis) interrupta (Poda 1761) Orange-spined Drone Fly Locke, Young and Skevington
Eristalis (Eoseristalis) obscura Loew 1866 Dusky Drone Fly Scott King and Skevington
Eristalis (Eoseristalis) oestracea (Linnaeus 1758) Orange-tailed Drone Fly Locke, Young and Skevington
Eristalis (Eoseristalis) parens Bigot 1880 Boreal Drone Fly Skevington, Locke and Young
Eristalis (Eoseristalis) rupium Fabricius 1805 Spot-winged Drone Fly Locke, Young and Skevington
Eristalis (Eoseristalis) saxorum Wiedemann 1830 Blue-polished Drone Fly Locke, Young and Skevington
Eristalis (Eoseristalis) stipator Osten Sacken 1877 Yellow-shouldered Drone Fly Locke, Young and Skevington
Eristalis (Eoseristalis) transversa Wiedemann 1830 Transverse-banded Drone Fly Locke, Young and Skevington
Eristalis (Eristalis) tenax (Linnaeus 1758) Drone fly Locke, Young and Skevington
Eumerus funeralis Meigen 1822 Lesser Bulb Fly Locke, Young and Skevington
Eumerus narcissi Smith 1928 Daffodil Bulb Fly Locke, Young and Skevington
Eumerus strigatus (Fallén 1817) Onion Bulb Fly Locke, Young and Skevington
Eupeodes (Eupeodes) volucris Osten Sacken 1877 Large-tailed Aphideater Locke, Young and Skevington
Eupeodes (Lapposyrphus) aberrantis (Curran 1925) Western Loopwing Aphideater Locke, Young and Skevington
Eupeodes (Lapposyrphus) lapponicus (Zetterstedt 1838) Common Loopwing Aphideater Locke, Young and Skevington
Eupeodes (Metasyrphus) americanus (Wiedemann 1830) American Aphideater Locke, Young and Skevington
Eupeodes (Metasyrphus) confertus (Fluke 1952) Northeastern Aphideater Skevington, Locke and Young
Eupeodes (Metasyrphus) curtus (Hine 1922) Comma-spot Aphideater Locke, Young and Skevington
Eupeodes (Metasyrphus) flukei (Jones 1917) Fluke's Aphideater Locke, Young and Skevington
Eupeodes (Metasyrphus) fumipennis (Thomson 1869) Long-tailed Aphideater Skevington, Locke and Young
Eupeodes (Metasyrphus) gentneri (Fluke 1952) Pacific Aphideater Skevington, Locke and Young
Eupeodes (Metasyrphus) latifasciatus (Macquart 1829) Variable Aphideater Locke, Young and Skevington
Eupeodes (Metasyrphus) luniger (Meigen 1822) Black-tailed Aphideater Locke, Young and Skevington
Eupeodes (Metasyrphus) montanus (Curran 1925) Mountain Aphideater Skevington, Locke and Young
Eupeodes (Metasyrphus) montivagus (Snow 1895) Red-tailed Aphideater Locke, Young and Skevington
Eupeodes (Metasyrphus) neoperplexus (Curran 1925) Spot-headed Aphideater Locke, Young and Skevington
Eupeodes (Metasyrphus) nigroventris (Fluke 1933) Black Aphideater Locke, Young and Skevington
Eupeodes (Metasyrphus) perplexus (Osburn 1910) Perplexing Aphideater Locke, Young and Skevington
Eupeodes (Metasyrphus) pingreensis (Fluke 1930) Pingree's Aphideater Locke, Young and Skevington
Eupeodes (Metasyrphus) pomus (Curran 1921) Short-tailed Aphideater Locke, Young and Skevington
Eupeodes (Metasyrphus) rufipunctatus (Curran 1925) Curran's Aphideater Locke, Young and Skevington
Eupeodes (Metasyrphus) sculleni (Fluke 1952) Obscure Aphideater Locke, Young and Skevington
Eupeodes (Metasyrphus) snowi (Wehr 1924) Snow's Aphideater Locke, Young and Skevington
Eupeodes (Metasyrphus) talus (Fluke 1933) Yellow-tailed Aphideater Skevington, Locke and Young
Eurimyia lineatus (Fabricius 1787) Long-nosed Swamp Fly Locke, Young and Skevington
Fazia micrura (Osten Sacken 1877) Diamond Spottail Locke, Young and Skevington
Ferdinandea aeneicolor Shannon 1924 Western Quill Fly Skevington, Locke and Young
Ferdinandea buccata (Loew 1863) Common Quill Fly Locke, Young and Skevington
Ferdinandea croesus (Osten Sacken 1877) Golden Quill Fly Locke, Young and Skevington
Hadromyia (Chrysosomidia) aepalius (Walker 1849) Sterling Quicksilver Locke, Young and Skevington
Hadromyia (Chrysosomidia) aldrichi (Shannon 1916) Aldrich's Quicksilver Locke, Young and Skevington
Hadromyia (Chrysosomidia) crawfordi (Shannon 1916) Golden Quicksilver Locke, Young and Skevington
Hadromyia (Chrysosomidia) opaca (Shannon 1916) Brassy Quicksilver Locke, Young and Skevington
Hadromyia (Chrysosomidia) pulchra (Williston 1882) Yellow-shielded Quicksilver Locke, Young and Skevington
Hadromyia (Hadromyia) grandis Williston 1882 Bee-like Quicksilver Locke, Young and Skevington
Hammerschmidtia ferruginea (Fallén 1817) Aspen Hoverfly Locke, Young and Skevington
Helophilus (Helophilus) bottnicus Wahlberg 1844 Gray Sun Fly Locke, Young and Skevington
Helophilus (Helophilus) fasciatus Walker 1849 Narrow-headed Sun Fly Locke, Young and Skevington
Helophilus (Helophilus) groenlandicus (Fabricius 1780) Black-margined Sun Fly Locke, Young and Skevington
Helophilus (Helophilus) hybridus Loew 1846 Woolly-tailed Sun Fly Locke, Young and Skevington
Helophilus (Helophilus) intentus Curran & Fluke 1926 Yellow-legged Sun Fly Locke, Young and Skevington
Helophilus (Helophilus) lapponicus Wahlberg 1844 Yellow-margined Sun Fly Locke, Young and Skevington
Helophilus (Helophilus) latifrons Loew 1863 Broad-headed Sun Fly Locke, Young and Skevington
Helophilus (Helophilus) neoaffinis Fluke 1949 Northwestern Sun Fly Locke, Young and Skevington
Helophilus (Helophilus) obscurus Loew 1863 Obscure Sun Fly Locke, Young and Skevington
Heringia (Heringia) californica (Davidson 1917) Californian Smoothleg Locke, Young and Skevington
Heringia (Heringia) canadensis Curran 1921 Canadian Smoothleg Locke, Young and Skevington
Heringia (Heringia) comutata Curran 1921 Slate Smoothleg Locke, Young and Skevington
Heringia (Heringia) intensica Curran 1921 Dusky Smoothleg Locke, Young and Skevington
Heringia (Heringia) salax (Loew 1866) Eastern Smoothleg Locke, Young and Skevington
Hiatomyia canadensis (Shannon 1922) Yellow-haired Deltawing Locke, Young and Skevington
Hiatomyia chionthrix Hull & Fluke 1950 Snowy-haired Deltawing Skevington, Locke and Young
Hiatomyia chrysothrix Hull & Fluke 1950 Golden-haired Deltawing Skevington, Locke and Young
Hiatomyia coriacea Hull & Fluke 1950 Leathery Deltawing Skevington, Locke and Young
Hiatomyia cyanea (Hunter 1896) Azure Deltawing Skevington, Locke and Young
Hiatomyia cyanescens (Loew 1863) Cobalt Deltawing Locke, Young and Skevington
Hiatomyia gemini (Shannon 1922) Mountain Deltawing Skevington, Locke and Young
Hiatomyia hecate Hull & Fluke 1950 Witch's Deltawing Skevington, Locke and Young
Hiatomyia hyacintha Hull & Fluke 1950 Oregon Deltawing Skevington, Locke and Young
Hiatomyia idahoa (Shannon 1922) Dusky Deltawing Locke, Young and Skevington
Hiatomyia nasica Hull & Fluke 1950 Stygian Deltawing Skevington, Locke and Young
Hiatomyia nigrocyanea Hull & Fluke 1950 Bruised Deltawing Skevington, Locke and Young
Hiatomyia niveifrons Hull & Fluke 1950 White-faced Deltawing Skevington, Locke and Young
Hiatomyia nyctichroma Hull & Fluke 1950 Black Deltawing Skevington, Locke and Young
Hiatomyia olivia Hull & Fluke 1950 Olivia's Deltawing Skevington, Locke and Young
Hiatomyia plumosa (Coquillett 1904) Ebony Deltawing Locke, Young and Skevington
Hiatomyia plutonia (Hunter 1897) Midnight Deltawing Locke, Young and Skevington
Hiatomyia rubroflava Hull & Fluke 1950 Reddish Deltawing Skevington, Locke and Young
Hiatomyia signatiseta (Hunter 1896) Charcoal Deltawing Locke, Young and Skevington
Hiatomyia tessa Hull & Fluke 1950 California Deltawing Skevington, Locke and Young
Hiatomyia townsendi (Hunter 1896) Yellow-legged Deltawing Locke, Young and Skevington
Hiatomyia willistoni (Snow 1895) Dark-horned Deltawing Locke, Young and Skevington
Lejops (Lejops) pillosus (Hunter 1897) Pilose Swamp Fly Skevington, Locke and Young
Lejota aerea (Loew 1872) Golden Lejota Skevington, Locke and Young
Lejota cyanea (Smith 1912) Cobalt Lejota Skevington, Locke and Young
Lepidomyia micheneri (Fluke 1953) Michner's Scaleback Skevington, Locke and Young
Leucopodella marmorata (Bigot 1884) Marbled Fairy Skevington, Locke and Young
Leucozona (Ischyrosyrphus) velutina (Williston 1882) Western Hoary Skevington, Locke and Young
Leucozona (Ischyrosyrphus) xylotoides (Johnson 1916) Eastern Hoary Skevington, Locke and Young
Leucozona (Leucozona) americana Curran 1923 American Whitebelt Locke, Young and Skevington
Lunomyia cooleyi (Seamans 1917) Black Moon Fly Locke, Young and Skevington
Mallota (Mallota) albipilis Snow 1895 Yellow Mimic Locke, Young and Skevington
Mallota (Mallota) bautias (Walker 1849) Bare-eyed Mimic Skevington, Locke and Young
Mallota (Mallota) bequaerti Hull 1956 Spot-winged Mimic Skevington, Locke and Young
Mallota (Mallota) posticata (Fabricius 1805) Hairy-eyed Mimic Locke, Young and Skevington
Mallota (Mallota) sackeni Williston 1882 Brown-haltered Mimic Locke, Young and Skevington
Megasyrphus catalina (Curran 1930) Yellow-legged Gossamer Skevington, Locke and Young
Megasyrphus laxus (Osten Sacken 1875) Black-legged Gossamer Locke, Young and Skevington
Melangyna arctica (Zetterstedt 1838) Pollinose Halfband Locke, Young and Skevington
Melangyna coei Nielsen 1971 Coe's Halfband Locke, Young and Skevington
Melangyna fisherii (Walton 1911) Large-spotted Halfband Locke, Young and Skevington
Melangyna labiatarum (Verrall 1901) Bare-eyed Halfband Locke, Young and Skevington
Melangyna lasiophthalma (Zetterstedt 1843) Hair-eyed Halfband Locke, Young and Skevington
Melangyna subfasciata (Curran 1925) Yellow-faced Halfband Locke, Young and Skevington
Melangyna umbellatarum (Fabricius 1794) Bare-winged Halfband Locke, Young and Skevington
Meligramma guttata (Fallén 1817) Variable Duskyface Young, Locke and Skevington
Meligramma triangulifera (Zetterstedt 1843) Spotted Roundtail Locke, Young and Skevington
Meligramma vespertina (Vockeroth 1980) Variable Roundtail Locke, Young and Skevington
Melanostoma mellinum (Linnaeus 1758) Western Roundtail Skevington, Locke and Young
Meliscaeva cinctella (Zetterstedt 1843) American Thintail Locke, Young and Skevington
Merapioidus villosus (Bigot 1879) Winter Bumblefly Skevington and Moran
Merodon (Merodon) equestris (Fabricius 1794) Narcissus Bulb Fly Previously established
Meromacrus acutus (Fabricius 1805) Carolinian Elegant Skevington, Locke and Young
Meromacrus croceatus Hull 1960 California Elegant Skevington, Locke and Young
Meromacrus draco Hull 1942 Southern Elegant Skevington, Locke and Young
Meromacrus gloriosus Hull 1941 Glorious Elegant Skevington, Locke and Young
Meromacrus panamensis Curran 1930 Neotropical Elegant Skevington, Locke and Young
Microdon (Chymophila) fulgens Wiedemann 1830 Rainbow Ant Fly Skevington, Locke and Young
Microdon (Dimeraspis) abditus Thompson 1981 Broad-footed Ant Fly Skevington, Locke and Young
Microdon (Dimeraspis) adventitius Thompson 1981 Southeastern Ant Fly Skevington, Locke and Young
Microdon (Dimeraspis) fuscipennis (Macquart 1834) Short-horned Ant Fly Young, Locke and Skevington
Microdon (Dimeraspis) globosus (Fabricius 1805) Globular Ant Fly Young, Locke and Skevington
Microdon (Dimeraspis) marmoratum Bigot 1884 Western Ant Fly Young, Locke and Skevington
Microdon (Laetodon) laetoides Curran 1935 Arizona Ant Fly Skevington, Locke and Young
Microdon (Laetodon) laetus Loew 1864 Small Metallic Ant Fly Skevington, Locke and Young
Microdon (Microdon) abstrusus Thompson 1981 Hidden Ant Fly Skevington, Locke and Young
Microdon (Microdon) albicomatus Novak 1977 White-Haired Ant Fly Young, Locke and Skevington
Microdon (Microdon) aurulentus (Fabricius 1805) Yellow-haired Ant Fly Skevington, Locke and Young
Microdon (Microdon) cothurnatus Bigot 1884 Orange-legged Ant Fly Young, Locke and Skevington
Microdon (Microdon) craigheadii Walton 1912 Large Metallic Ant Fly Skevington, Locke and Young
Microdon (Microdon) lanceolatus Adams 1903 Spear-horned Ant Fly Young, Locke and Skevington
Microdon (Microdon) manitobensis Curran 1924 Greater Ant Fly Young, Locke and Skevington
Microdon (Microdon) megalogaster Snow 1892 Black-bodied Ant Fly Young, Locke and Skevington
Microdon (Microdon) newcomeri Mann 1924 Pacific Ant Fly Skevington, Locke and Young
Microdon (Microdon) ocellaris Curran 1924 Hairy-legged Ant Fly Skevington, Locke and Young
Microdon (Microdon) piperi Knab 1917 Blue-black Ant Fly Young, Locke and Skevington
Microdon (Microdon) ruficrus Williston 1887 Spiny-shield Ant Fly Young, Locke and Skevington
Microdon (Microdon) tristis Loew 1864 Long-horned Ant Fly Skevington, Locke and Young
Microdon (Microdon) viridis Townsend 1895 Flat-horned Ant Fly Young, Locke and Skevington
Microdon (Microdon) xanthopilis Townsend 1895 Western Ant Fly Skevington, Locke and Young
Microdon (Omegasyrphus) baliopterus Loew 1872 Southern Spot-winged Ant Fly Skevington, Locke and Young
Microdon (Omegasyrphus) coarctatus Loew 1864 Eastern Spot-winged Ant Fly Skevington, Locke and Young
Microdon (Omegasyrphus) painteri Hull 1922 Painter's Spot-winged Ant Fly Skevington, Locke and Young
Microdon (Omegasyrphus) pallipennis Curran 1925 Western Spot-winged Ant Fly Skevington, Locke and Young
Microdon (Serochlamys) diversipilosus Curran 1925 Yellow Ant Fly Skevington, Locke and Young
Microdon (Serochlamys) rufipes (Macquart 1842) Purplish Ant Fly Skevington, Locke and Young
Microdon (Serochlamys) scutifer Knab 1917  
Milesia bella Townsend 1897 Alluring Giant Skevington, Locke and Young
Milesia scutellata Hull 1924 Yellow-backed Giant Skevington, Locke and Young
Milesia virginiensis (Drury 1773) Virginia Giant Locke, Young and Skevington
Mixogaster breviventris Kahl 1897 Slender Ant Fly Skevington
Mixogaster currani Hull 1954 Curran's Ant Fly Skevington
Mixogaster delongi Johnson 1926 De Long's Ant Fly Skevington
Mixogaster johnsoni Hull 1941 Johnson's Ant Fly Skevington
Myanthropa florea (Linnaeus 1758) Eurasian Rattail Skevington, Locke and Young
Myolepta (Myolepta) auricaudata Williston 1891    
Myolepta (Myolepta) aurinota Hine 1903    
Myolepta (Myolepta) camillae Weems 1956    
Myolepta (Myolepta) lunulata Bigot 1884    
Myolepta (Myolepta) nigra Loew 1872 Black Pegleg Skevington, Locke and Young
Myolepta (Myolepta) strigilata Loew 1872 Scaled Pegleg Skevington, Locke and Young
Myolepta (Myolepta) varipes Loew 1870 Orange-banded Pegleg Locke, Young and Skevington
Nausigaster clara Curran 1941    
Nausigaster curvinervis Curran 1941    
Nausigaster geminata Townsend 1897    
Nausigaster nova Curran 1941    
Nausigaster punctulata Williston 1883    
Nausigaster scutellaris Adams 1904    
Nausigaster texana Curran 1941 Texan Armoured Fly Skevington, Locke and Young
Nausigaster unimaculata Townsend 1897 Single-spotted Armoured Fly Skevington, Locke and Young
Neoascia (Neoascia) distincta Williston 1887 Spotted Fen Fly Locke, Young and Skevington
Neoascia (Neoascia) globosa (Walker 1849) Banded Fen Fly Locke, Young and Skevington
Neoascia (Neoascia) metallica (Williston 1882) Metallic Fen Fly Locke, Young and Skevington
Neoascia (Neoasciella) geniculata (Meigen 1822) White-kneed Fen Fly Locke, Young and Skevington
Neoascia (Neoasciella) meticulosa (Scopoli 1763)  
Neoascia (Neoasciella) sphaerophoria Curran 1925 Globetail Fen Fly Locke, Young and Skevington
Neoascia (Neoasciella) subchalybea Curran 1925 Black Fen Fly Locke, Young and Skevington
Neocnemodon albipleura (Curran 1921) Sable Spikeleg Skevington, Locke and Young
Neocnemodon auripleura (Curran 1921) Murky Spikeleg Skevington, Locke and Young
Neocnemodon calcarata (Loew 1866) Opaque Spikeleg Skevington, Locke and Young
Neocnemodon carinata (Curran 1921) Carinate Spikeleg Skevington, Locke and Young
Neocnemodon cevelata (Curran 1921) Carbon Spikeleg Skevington, Locke and Young
Neocnemodon corvallis (Curran 1921) Corvallis Spikeleg Skevington, Locke and Young
Neocnemodon coxalis (Curran 1921) Shaded Spikeleg Skevington, Locke and Young
Neocnemodon elongata (Curran 1921) Elongate Spikeleg Skevington, Locke and Young
Neocnemodon intermedia (Curran 1921) Midnight Spikeleg Skevington, Locke and Young
Neocnemodon latitarsis (Egger 1865) Clouded Spikeleg Skevington, Locke and Young
Neocnemodon longiseta (Curran 1921) Long-horned Spikeleg Skevington, Locke and Young
Neocnemodon lovetti (Curran 1921) Lovett's Spikeleg Skevington, Locke and Young
Neocnemodon myerma (Curran 1921) Smoke-tipped Spikeleg Skevington, Locke and Young
Neocnemodon nigricornis (Curran 1922) Drab Spikeleg Skevington, Locke and Young
Neocnemodon nudifrons (Curran 1921) Bare-fronted Spikeleg Skevington, Locke and Young
Neocnemodon ontarioensis (Curran 1921) Ontario Spikeleg Skevington, Locke and Young
Neocnemodon pisticoides (Williston 1887) Swarthy Spikeleg Skevington, Locke and Young
Neocnemodon placida (Curran 1921) White-haired Spikeleg Skevington, Locke and Young
Neocnemodon pubescens (Delucchi & Pschorn 1955) Pubescent Spikeleg Skevington, Locke and Young
Neocnemodon rita (Curran 1921) Gloomy Spikeleg Skevington, Locke and Young
Neocnemodon sinousa (Curran 1921) Sinuous Spikeleg Skevington, Locke and Young
Neocnemodon squamulae (Curran 1921) Dingy Spikeleg Skevington, Locke and Young
Neocnemodon trochanterata (Malloch 1918) Tuberculate Spikeleg Skevington, Locke and Young
Neocnemodon unicolor (Curran 1921) Unadorned Spikeleg Skevington, Locke and Young
Neocnemodon venteris (Curran 1921) Dark-winged Spikeleg Skevington, Locke and Young
Ocyptamus antiphates (Walker 1849)    
Ocyptamus coeruleus (Williston 1891)    
Ocyptamus costatus (Say 1829) Cobalt Hover Fly Locke, Young and Skevington
Ocyptamus cubanus (Hull 1943)  
Ocyptamus cylindricus (Fabricius 1781)    
Ocyptamus dimidiatus (Fabricius 1781)  
Ocyptamus diversifasciatus (Knab 1914) Silver-banded Hover Fly Locke, Young and Skevington
Ocyptamus fascipennis (Wiedemann 1830) Eastern Band-winged Hover Fly Locke, Young and Skevington
Ocyptamus funebris Macquart 1834  
Ocyptamus fuscipennis (Say 1823) Dusky-winged Hover Fly Locke, Young and Skevington
Ocyptamus gastrostactus (Wiedemann 1830)  
Ocyptamus jactator (Loew 1861)  
Ocyptamus lemur (Osten Sacken 1877) Western Band-winged Hover Fly Locke, Young and Skevington
Ocyptamus lineatus (Macquart 1846)  
Ocyptamus parvicornis (Loew 1861)  
Ornidia obesa (Fabricius 1775) Common Green Jewel Skevington, Locke and Young
Orthonevra anniae (Sedman 1966) Shiny-sided Patterneye Young, Locke and Skevington
Orthonevra bellula (Williston 1882) Three-lined Patterneye Skevington, Locke and Young
Orthonevra flukei (Sedman 1964) Fluke's Patterneye Skevington, Locke and Young
Orthonevra minuta (Hull 1945)  
Orthonevra nigrovittata (Loew 1876)  
Orthonevra nitida (Wiedemann 1830) Wavy Patterneye Young, Locke and Skevington
Orthonevra nitidula (Curran 1925) Four-lined Patterneye Skevington, Locke and Young
Orthonevra parva (Shannon 1916) Copper-striped Patterneye Young, Locke and Skevington
Orthonevra pictipennis (Loew 1863) Dusky-veined Patterneye Young, Locke and Skevington
Orthonevra pulchella (Williston 1887) Beautiful Patterneye Young, Locke and Skevington
Orthonevra robusta (Shannon 1916)  
Orthonevra sinuosa (Bigot 1884) Indigo Patterneye Young, Locke and Skevington
Orthonevra sonorensis (Sedman 1964) Sonoran Patterneye Skevington, Locke and Young
Orthonevra stigmata (Williston 1882) Black-headed Patterneye Young, Locke and Skevington
Orthonevra unicolor (Shannon 1916)  
Orthonevra weemsi (Sedman 1966) Weems' Patterneye Young, Locke and Skevington
Palpada agrorum (Fabricius 1787)    
Palpada albifrons (Wiedemann 1830) White-faced Plushback Skevington, Locke and Young
Palpada alhambra (Hull 1925)    
Palpada furcata (Wiedemann 1819) Striped Plushback Skevington, Locke and Young
Palpada mexicana (Macquart 1847)    
Palpada minutalis (Williston 1891)    
Palpada pusilla (Macquart 1842)    
Palpada rufiventris (Macquart 1846) Harlequin Plushback Skevington, Locke and Young
Palpada scutellaris (Fabricius 1805)    
Palpada texana (Hull 1925)    
Palpada vinetorum (Fabricius 1799) Northern Plushback Locke, Young and Skevington
Paragus (Pandasyopthalmus) haemorrhous Meigen 1822 Black-nosed Grass Skimmer Locke, Young and Skevington
Paragus (Paragus) angustifrons Loew 1863 Narrow-faced Grass Skimmer Locke, Young and Skevington
Paragus (Paragus) angustistylus Vockeroth 1986 Thin-spined Grass Skimmer Locke, Young and Skevington
Paragus (Paragus) arizonensis Vockeroth 1986 Arizona Grass Skimmer Locke, Young and Skevington
Paragus (Paragus) bispinosus Vockeroth 1986 Two-spined Grass Skimmer Locke, Young and Skevington
Paragus (Paragus) cooverti Vockeroth 1986 Coovert's Grass Skimmer Locke, Young and Skevington
Paragus (Paragus) longistylus Vockeroth 1986 Western Grass Skimmer Skevington, Locke and Young
Paragus (Paragus) variabilis Vockeroth 1986 Variable Grass Skimmer Locke, Young and Skevington
Parasyrphus currani (Fluke 1935) Curran's Bristleside Skevington, Locke and Young
Parasyrphus genualis (Williston 1887) Common Bristleside Young, Locke and Skevington
Parasyrphus groenlandica (Nielsen 1910) Arctic Bristleside Young, Locke and Skevington
Parasyrphus insolitus (Osburn 1908) Enigmatic Bristleside Young, Locke and Skevington
Parasyrphus macularis (Zetterstedt 1843) Spotted Bristleside Young, Locke and Skevington
Parasyrphus melanderi (Curran 1925) Melander's Bristleside Young, Locke and Skevington
Parasyrphus nigritarsis (Zetterstedt 1843) Yellow-faced Bristleside Young, Locke and Skevington
Parasyrphus relictus (Zetterstedt 1838) Boreal Bristleside Young, Locke and Skevington
Parasyrphus semiinterruptus (Fluke 1935) Emarginate Bristleside Young, Locke and Skevington
Parasyrphus tarsatus (Zetterstedt 1838) Holarctic Bristleside Young, Locke and Skevington
Parasyrphus vockerothi Thompson 2012 Vockeroth's Bristleside Young, Locke and Skevington
Parhelophilus brooksi Curran 1927 Brook's Bog Fly Locke, Young and Skevington
Parhelophilus currani Fluke 1953 Curran's Bog Fly Locke, Young and Skevington
Parhelophilus divisus (Loew 1863) Yellow-legged Bog Fly Locke, Young and Skevington
Parhelophilus flavifacies (Bigot 1884) Black-legged Bog Fly Locke, Young and Skevington
Parhelophilus integer (Loew 1863) Shining Bog Fly Locke, Young and Skevington
Parhelophilus laetus (Loew 1863) Common Bog Fly Locke, Young and Skevington
Parhelophilus obsoletus (Loew 1863) Unadorned Bog Fly Locke, Young and Skevington
Parhelophilus porcus (Walker 1849) Black Bog Fly Locke, Young and Skevington
Parhelophilus rex Curran & Fluke 1926 Dusky Bog Fly Skevington, Locke and Young
Pelecocera apichaetus (Curran 1923) California Bighorn Skevington, Locke and Young
Pelecocera pergandei (Williston 1884) Eastern Bighorn Skevington, Locke and Young
Pelecocera willistoni Snow 1895 Mountain Bighorn Skevington, Locke and Young
Pipiza atrata Curran 1922 Ebony Pipiza Skevington, Locke and Young
Pipiza crassipes Bigot 1884 Stout Pipiza Skevington, Locke and Young
Pipiza cribbeni Coovert 1996 Cribben's Pipiza Skevington, Locke and Young
Pipiza davidsoni Curran 1921 Davidson's Pipiza Skevington, Locke and Young
Pipiza distincta Curran 1921 Onyx Pipiza Skevington, Locke and Young
Pipiza femoralis Loew 1866 Ridged Pipiza Skevington, Locke and Young
Pipiza macrofemoralis Curran 1921 Large-legged Pipiza Skevington, Locke and Young
Pipiza nigripilosa Williston 1887 Black-haired Pipiza Skevington, Locke and Young
Pipiza puella Williston 1887 Dim Pipiza Skevington, Locke and Young
Pipiza quadrimaculata (Panzer 1804) Four-spotted Pipiza Skevington, Locke and Young
Pipiza subinflatifrons Coovert 1996 Swollen-headed Pipiza Skevington, Locke and Young
Platycheirus (Platycheirus) aeratus (Coquillett 1900) Coquillett's Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) albimanus (Fabricius 1781) Three-tufted Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) amplus Curran 1927 Broadhand Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) angustatus (Zetterstedt 1843) Delicate Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) atra (Curran 1925) Brassy Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) brunnifrons Nielsen 2004 Copperhead Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) chilosia (Curran 1922) Bristlehand Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) ciliatus Bigot 1884 Pacific Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) clausseni Nielsen, 2004 Claussen's Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) clypeatus (Meigen 1822) Smoky-winged Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) coerulescens (Williston 1887) Hooked Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) concinnus (Snow 1895) Cobalt Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) confusus (Curran 1925) Confusing Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) coracinus Vockeroth 1990 Carcross Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) discimanus (Loew 1871) Yellowfoot Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) femineum Curran 1931 Curran's Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) flabella Hull 1944 Smallspot Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) groenlandicus Curran 1927 Greenland Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) hesperius Vockeroth 1990 Southern Punctate Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) hispidipes Vockeroth 1990 Terrace Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) holarcticus Vockeroth 1990 Tufted Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) hyperboreus (Staeger 1845) Silvery Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) immarginatus (Zetterstedt 1849) Comb-legged Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) inversus Ide 1926 Knobfoot Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) jaerensis (Nielsen 1971) Palehorn Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) kelloggi (Snow 1895) Broad-bodied Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) lata (Curran 1922) Blackhair Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) latitarsis Vockeroth 1990 Flathand Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) lundbecki (Collin 1931) Lundbeck's Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) luteipennis (Curran 1925) Coppery Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) manicatus (Meigen 1822) Greyshield Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) modestus Ide 1926 Yellow Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) nearcticus Vockeroth 1990 Nearctic Broadhand Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) nielseni Vockeroth 1990 Nielsen's Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) nigrofemoratus (Kanervo 1934) Black-legged Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) nodosus Curran 1923 Twospear Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) normae Fluke 1939 Paddlearm Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) obscurus (Say 1824) Eastern Forest Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) octavus Vockeroth 1990 Montane Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) orarius Vockeroth 1990 Salt Marsh Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) oreadis Vockeroth 1990 Mount Evans Sedgesitter Skevington, Locke and Young
Platycheirus (Platycheirus) parmatus Rondani 1857 Shieldhand Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) peltatoides Curran 1923 Keeled Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) perpallidus Verrall 1901 Perplexing Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) pilatus Vockeroth 1990 Speartip Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) podagrata (Zetterstedt 1838) Variable Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) protrusus Vockeroth 1990 Tuberculate Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) pullatus Vockeroth 1990 Northwest Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) quadratus (Say 1823) Meadow Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) russatus Vockeroth 1990 California Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) sabulicola Vockeroth 1990 Yukon Sand dune Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) scamboides Curran 1927 Yellowspine Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) scambus (Staeger 1843) Blackspine Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) scutatus (Meigen 1822) Many-tufted Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) setipes Vockeroth 1990 Black Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) setitarsis Vockeroth 1990 Spinyhand Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) spinipes Vockeroth 1990 Lesser Punctate Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) squamulae (Curran 1922) Hairywing Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) stegnoides Vockeroth 1990 Black Punctate Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) stegnus (Say 1829) Greater Punctate Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) striatus Vockeroth 1990 Mundane Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) subordinatus (Becker 1915) Narrowhand Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) tenebrosus Coquillett 1900 Blackhair Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) thompsoni Vockeroth 1990 Thompson's Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) thylax Hull 1944 Yellow-legged Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) trichopus (Thomson 1869) Western Forest Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) urakawensis (Matsumura 1919) Japanese Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) varipes Curran 1923 Silver Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) woodi Vockeroth 1990 Wood's Sedgesitter Young, Locke and Skevington
Platycheirus (Platycheirus) yukonensis Vockeroth 1990 Greater Bristlehand Sedgesitter Young, Locke and Skevington
Platycheirus (Pyrophaena) granditarsis (Forster 1771) Hornhand Sedgesitter Young, Locke and Skevington
Platycheirus (Pyrophaena) rosarum (Fabricius 1787) Fourspot Sedgesitter Young, Locke and Skevington
Platycheirus (Pyrophaena) rufigaster Vockeroth 1990 Orangetail Sedgesitter Young, Locke and Skevington
Pocota bomboides Hunter 1897 American Pocota Locke, Young and Skevington
Polydontomyia curvipes (Wiedemann 1830) Dimorphic Sickleleg Locke, Young and Skevington
Pseudodoros clavatus (Fabricius 1794) Fourspot Skevington, Locke and Young
Psilota buccata (Macquart 1842)    
Psilota flavidipennis Macquart 1855    
Psilota thatuna Shannon 1922    
Pterallastes thoracicus Loew 1863 Goldenback Skevington, Locke and Young
Pyritis kincaidii (Coquillett 1895) Halcyon Locke, Young and Skevington
Rhingia (Rhingia) nasica Say 1823 American Heineken Fly Locke, Young and Skevington
Rhopalosyrphus guentherii (Lynch Arribalzaga 1891)    
Rhopalosyrphus ramulorum Weems & Deyrup 2003    
Salpingogaster punctifrons Curran 1929    
Scaeva pyrastri (Linnaeus 1758) White-bowed Smoothwing Locke, Young and Skevington
Scaeva selenitica (Meigen 1822) Yellow-bowed Smoothwing Locke, Young and Skevington
Sericomyia arctica Schirmer 1913 Arctic Pond Fly Locke, Young and Skevington
Sericomyia bifasciata Williston 1887 Long-nosed Pond Fly Locke, Young and Skevington
Sericomyia carolinensis (Metcalf 1917) Two-spotted Pond Fly Skevington, Locke and Young
Sericomyia chalcopyga Loew 1863 Western Pond Fly Locke, Young and Skevington
Sericomyia chrysotoxoides Macquart 1842 Oblique-banded Pond Fly Locke, Young and Skevington
Sericomyia flagrans (Osten Sacken 1875) Spot-winged Pond Fly Locke, Young and Skevington
Sericomyia harveyi (Osburn 1908) Harvey's Pond Fly Locke, Young and Skevington
Sericomyia jakutica (Stackelberg 1927) Northern Pond Fly Locke, Young and Skevington
Sericomyia lata (Coquillett 1907) White-spotted Pond Fly Locke, Young and Skevington
Sericomyia militaris Walker 1849 Narrow-banded Pond Fly Locke, Young and Skevington
Sericomyia nigra Portschinsky 1873 Polar Pond Fly Locke, Young and Skevington
Sericomyia sexfasciata Walker 1849 Six-banded Pond Fly Locke, Young and Skevington
Sericomyia slossonae Curran 1934 Slosson's Pond Fly Locke, Young and Skevington
Sericomyia tolli (Frey 1915) Great-nosed Pond Fly Locke, Young and Skevington
Sericomyia transversa Osburn 1926 Yellow-spotted Pond Fly Locke, Young and Skevington
Sericomyia vockerothi Skevington 2012 Vockeroth's Pond Fly Skevington, Locke and Young
Sericomyia woodi Nielsen & Vockeroth 2000 Wood's Pond Fly Locke, Young and Skevington
Somula decora Macquart 1847 Spotted Wood Fly Locke, Young and Skevington
Somula mississippiensis Hull 1922 Banded Wood Fly Skevington, Locke and Young
Sphaerophoria abbreviata Zetterstedt 1849 Variable Globetail Locke, Young and Skevington
Sphaerophoria asymmetrica Knutson 1972 Asymmetric Globetail Locke, Young and Skevington
Sphaerophoria bifurcata Knutson 1972 Symmetric Globetail Locke, Young and Skevington
Sphaerophoria brevipilosa Knutson 1972 Broad-striped Globetail Locke, Young and Skevington
Sphaerophoria contigua Macquart 1847 Tufted Globetail Locke, Young and Skevington
Sphaerophoria cranbrookensis Curran 1921 Bulky Globetail Locke, Young and Skevington
Sphaerophoria longipilosa Knutson 1972 Narrow-striped Globetail Locke, Young and Skevington
Sphaerophoria novaeangliae Johnson 1916 Black-striped Globetail Locke, Young and Skevington
Sphaerophoria philanthus (Meigen 1822) Black-footed Globetail Locke, Young and Skevington
Sphaerophoria pyrrhina Bigot 1884 Violaceous Globetail Locke, Young and Skevington
Sphaerophoria scripta (Linnaeus 1758) Greenland Globetail Skevington, Locke and Young
Sphaerophoria sulphuripes (Thomson 1869) Forked Globetail Locke, Young and Skevington
Sphaerophoria weemsi Knutson 1972 Weems' Globetail Locke, Young and Skevington
Sphecomyia brevicornis Osten Sacken 1877 Short-horned Yellowjacket Fly Young, Locke and Skevington
Sphecomyia columbiana Vockeroth 1965 Columbian Yellowjacket Fly Young, Locke and Skevington
Sphecomyia dyari Shannon 1925 Dyar's Yellowjacket Fly Skevington, Locke and Young
Sphecomyia fusca Weisman 1964 Dusky Yellowjacket Fly Skevington, Locke and Young
Sphecomyia nasica Osburn 1908 Black-backed Yellowjacket Fly Young, Locke and Skevington
Sphecomyia occidentalis Osburn 1908 Western Yellowjacket Fly Young, Locke and Skevington
Sphecomyia pattonii Williston 1882 Patton's Yellowjacket Fly Young, Locke and Skevington
Sphecomyia vittata (Wiedemann 1830) Long-horned Yellowjacket Fly Young, Locke and Skevington
Sphegina (Asiosphegina) biannulata Malloch 1922 Banded Spatulate Fly Skevington, Locke and Young
Sphegina (Asiosphegina) californica Malloch 1922 Californian Spatulate Fly Locke, Young and Skevington
Sphegina (Asiosphegina) campanulata Robertson 1901 Bristled Spatulate Fly Locke, Young and Skevington
Sphegina (Asiosphegina) petiolata Coquillett 1910 Striped Spatulate Fly Locke, Young and Skevington
Sphegina (Asiosphegina) rufiventris Loew 1863 Solid-tailed Spatulate Fly Locke, Young and Skevington
Sphegina (Sphegina) albipes (Bigot 1884) Spotted Spatulate Fly Skevington, Locke and Young
Sphegina (Sphegina) appalachiensis Coovert 1977 Appalachian Spatulate Fly Skevington, Locke and Young
Sphegina (Sphegina) armatipes Malloch 1922 Spur-legged Spatulate Fly Skevington, Locke and Young
Sphegina (Sphegina) brachygaster Hull 1935 Simple-legged Spatulate Fly Locke, Young and Skevington
Sphegina (Sphegina) bridwelli Cole 1924 Bridwell's Spatulate Fly Locke, Young and Skevington
Sphegina (Sphegina) flavimana Malloch 1922 Tuberculate Spatulate Fly Locke, Young and Skevington
Sphegina (Sphegina) flavomaculata Malloch 1922 Tooth-legged Spatulate Fly Locke, Young and Skevington
Sphegina (Sphegina) infuscata Loew 1863 Dusky Spatulate Fly Locke, Young and Skevington
Sphegina (Sphegina) keeniana Williston 1887 Scoop-legged Spatulate Fly Locke, Young and Skevington
Sphegina (Sphegina) lobata Loew 1863 Yellow-lobed Spatulate Fly Locke, Young and Skevington
Sphegina (Sphegina) lobulifera Malloch 1922 Black-lobed Spatulate Fly Locke, Young and Skevington
Sphegina (Sphegina) nigrimana Cole 1924 Black-toed Spatulate Fly Skevington, Locke and Young
Sphegina (Sphegina) occidentalis Malloch 1922 Western Spatulate Fly Locke, Young and Skevington
Sphegina (Sphegina) punctata Cole 1921 Yellow-backed Spatulate Fly Locke, Young and Skevington
Sphegina (Sphegina) rufa Malloch 1922 Barb-legged Spatulate Fly Locke, Young and Skevington
Spilomyia alcimus (Walker 1849) Broad-banded Hornet Fly Locke, Young and Skevington
Spilomyia citima Vockeroth 1958 Western Hornet Fly Locke, Young and Skevington
Spilomyia crandalli Curran 1951 Crandall's Hornet Fly Skevington, Locke and Young
Spilomyia foxleei Vockeroth 1958 Foxlee's Hornet Fly Locke, Young and Skevington
Spilomyia fusca Loew 1864 Bald-faced Hornet Fly Locke, Young and Skevington
Spilomyia interrupta Williston 1882 Interrupted Hornet Fly Locke, Young and Skevington
Spilomyia kahli Snow 1895 Yellow-tailed Hornet Fly Skevington, Locke and Young
Spilomyia liturata Williston 1887 Rocky Mountain Hornet Fly Skevington, Locke and Young
Spilomyia longicornis Loew 1872 Eastern Hornet Fly Locke, Young and Skevington
Spilomyia obscura Coquillett 1902 Black-backed Hornet Fly Skevington, Locke and Young
Spilomyia sayi (Goot 1964) Four-lined Hornet Fly Locke, Young and Skevington
Syritta flaviventris Macquart 1842 Yellow-tailed Compost Fly Skevington, Locke and Young
Syritta pipiens (Linnaeus 1758) Common Compost Fly Locke, Young and Skevington
Syrphus attenuatus Hine 1922 Yellow-margined Flower Fly Locke, Young and Skevington
Syrphus currani Fluke 1939 Curran's Flower Fly Skevington, Locke and Young
Syrphus intricatus Vockeroth 1983 Yellow-faced Flower Fly Locke, Young and Skevington
Syrphus knabi Shannon 1916 Eastern Flower Fly Locke, Young and Skevington
Syrphus opinator Osten Sacken 1877 Black-margined Flower Fly Locke, Young and Skevington
Syrphus rectus Osten Sacken 1875 Yellow-legged Fly Locke, Young and Skevington
Syrphus ribesii (Linnaeus 1758) Common Flower Fly Locke, Young and Skevington
Syrphus sexmaculatus (Zetterstedt 1838) Six-spotted Flower Fly Locke, Young and Skevington
Syrphus sonorensis Vockeroth 1983 Southern Flower Fly Skevington, Locke and Young
Syrphus torvus Osten Sacken 1875 Hairy-eyed Flower Fly Locke, Young and Skevington
Syrphus vitripennis Meigen 1822 Black-legged Flower Fly Locke, Young and Skevington
Temnostoma alternans Loew 1864 Wasp-like Falsehorn Locke, Young and Skevington
Temnostoma balyras (Walker 1849) Yellow-haired Falsehorn Locke, Young and Skevington
Temnostoma barberi Curran 1939 Bare-bellied Falsehorn Locke, Young and Skevington
Temnostoma daochus (Walker 1849) Yellow-spotted Falsehorn Skevington, Locke and Young
Temnostoma excentrica (Harris, 1841) Black-spotted Falsehorn Locke, Young and Skevington
Temnostoma obscurum Loew 1864 Hairy-winged Falsehorn Locke, Young and Skevington
Temnostoma trifasciatum Robertson 1901 Three-lined Falsehorn Locke, Young and Skevington
Temnostoma venustum Williston 1887 Black-banded Falsehorn Locke, Young and Skevington
Teuchocnemis bacuntius (Walker 1849) Orange Spur Fly Skevington, Locke and Young
Teuchocnemis lituratus (Loew 1863) Black Spur Fly Locke, Young and Skevington
Toxomerus arcifer (Loew 1866) Bow-shaped Calligrapher Skevington, Locke and Young
Toxomerus boscii Macquart 1842 Thin-lined Calligrapher Skevington, Locke and Young
Toxomerus corbis (Walker 1852) Black-haired Calligrapher Skevington, Locke and Young
Toxomerus dispar (Fabricius 1794) Dark-sided Calligrapher Skevington, Locke and Young
Toxomerus floralis (Fabricius 1798) Florida Calligrapher Skevington, Locke and Young
Toxomerus geminatus (Say 1823) Eastern Calligrapher Locke, Young and Skevington
Toxomerus jussiaeae Vige 1939 Orange-backed Calligrapher Skevington, Locke and Young
Toxomerus marginatus (Say 1823) Margined Calligrapher Locke, Young and Skevington
Toxomerus occidentalis Curran 1922 Western Calligrapher Locke, Young and Skevington
Toxomerus parvulus (Loew 1866) Black-backed Calligrapher Skevington, Locke and Young
Toxomerus pictus (Macquart 1842) Yellow-shouldered Calligrapher Skevington, Locke and Young
Toxomerus politus (Say 1823) Maize Calligrapher Locke, Young and Skevington
Toxomerus pulchellus (Macquart 1846) Yellow-backed Calligrapher Skevington, Locke and Young
Toxomerus teliger (Fluke 1953) Bare-winged Calligrapher Skevington, Locke and Young
Toxomerus verticalis (Curran 1927) Banded Calligrapher Skevington, Locke and Young
Trichopsomyia apisaon Walker 1849 Charcoal Woolly Fly Young, Locke and Skevington
Trichopsomyia australis (Johnson 1907) Dichoptic Woolly Fly Skevington, Locke and Young
Trichopsomyia banksi (Curran 1921) Banks' Woolly Fly Skevington, Locke and Young
Trichopsomyia litoralis Vockeroth 2008   Skevington, Locke and Young
Trichopsomyia nigritarsis (Curran 1924) Obscure Woolly Fly Skevington, Locke and Young
Trichopsomyia occidentalis (Townsend 1897) Western Woolly Fly Skevington, Locke and Young
Trichopsomyia pubescens (Loew 1863) Inky Woolly Fly Skevington, Locke and Young
Trichopsomyia recedens (Walker 1852) Shadowy Woolly Fly Young, Locke and Skevington
Trichopsomyia rufithoracica (Curran 1921) Black-toed Woolly Fly Skevington, Locke and Young
Trichopsomyia similis (Curran 1924) Sooty Woolly Fly Skevington, Locke and Young
Tropidia (Tropidia) albistylum Macquart 1847 Southern Thickleg  
Tropidia (Tropidia) calcarata Williston 1887 Lily-loving Thickleg Young, Locke and Skevington
Tropidia (Tropidia) coloradensis (Bigot 1884)  
Tropidia (Tropidia) incana Townsend 1895  
Tropidia (Tropidia) mamillata Loew 1861 Central Thickleg
Tropidia (Tropidia) montana Hunter 1896  
Tropidia (Tropidia) pygmaea Shannon 1926  
Tropidia (Tropidia) quadrata (Say 1824) Common Thickleg Young, Locke and Skevington
Volucella arctica Johnson 1916 Arctic Swiftwing Moran
Volucella evecta Walker 1852 Eastern Swiftwing Moran
Volucella facialis Williston 1882 Yellow-faced Swiftwing Moran
Xanthandrus (Xanthandrus) mexicanus Curran 1930  
Xanthogramma flavipes (Loew 1863) American Painted Fly Young, Locke and Skevington
Xylota (Ameroxylota) flukei (Curran 1941) Fringeless Forest Fly Young, Locke and Skevington
Xylota (Sterphoides) azurea (Fluke 1953)  
Xylota (Sterphoides) lovetti Curran 1925 Lovett's Forest Fly Young, Locke and Skevington
Xylota (Sterphoides) nebulosa Johnson 1921  
Xylota (Sterphoides) nitidula (Fluke, 1939)  
Xylota (Xylota) analis Williston 1887 Yellow-legged Forest Fly Young, Locke and Skevington
Xylota (Xylota) angustiventris Loew 1866 Two-spotted Forest Fly Young, Locke and Skevington
Xylota (Xylota) annulifera Bigot 1884 Longspine Forest Fly Young, Locke and Skevington
Xylota (Xylota) argoi Shannon 1926 Western Orange-tailed Forest Fly Young, Locke and Skevington
Xylota (Xylota) barbata Loew 1864 Black Forest Fly Young, Locke and Skevington
Xylota (Xylota) bicolor Loew 1864 Eastern Orange-tailed Forest Fly Young, Locke and Skevington
Xylota (Xylota) confusa Shannon 1926 Confusing Forest Fly Young, Locke and Skevington
Xylota (Xylota) ejuncida Say 1824 Polished Forest Fly Skevington, Locke and Young
Xylota (Xylota) flavifrons Walker 1849 Northern Forest Fly Young, Locke and Skevington
Xylota (Xylota) flavitibia Bigot 1884 Yellow-toed Forest Fly Young, Locke and Skevington
Xylota (Xylota) hinei (Curran 1941) Hine's Forest Fly Young, Locke and Skevington
Xylota (Xylota) micrura (Curran 1941) Brassy Forest Fly Young, Locke and Skevington
Xylota (Xylota) naknek Shannon 1926 Naknek Forest Fly Young, Locke and Skevington
Xylota (Xylota) ouelleti (Curran 1941) Black-haired Forest Fly Young, Locke and Skevington
Xylota (Xylota) quadrimaculata Loew 1866 Four-spotted Forest Fly Young, Locke and Skevington
Xylota (Xylota) scutellarmata Lovett 1919  
Xylota (Xylota) segnis (Linnaeus 1758) Brown-toed Forest Fly Young, Locke and Skevington
Xylota (Xylota) subfasciata Loew 1866 Hairy-horned Forest Fly Young, Locke and Skevington
Xylota (Xylota) tuberculata (Curran 1941) Short-spined Forest Fly Young, Locke and Skevington
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This page last updated on 27-Oct-2016

CNC Diptera web page development
Dr. J.H. Skevington


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