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Robert Foottit - Publications

2017  |  2016  |  2015  |  2014  |  2013  |  2012  |  2011  |  2010  |  2009
2008  |  2007  |  2006  |  2005  |  Selected publications before 2005


Skvarla, M.J., S. Halbert, R.G. Foottit, A.S. Jensen, E. Maw and G.L. Miller 2017 An update to the adventive aphids of America north of Mexico, with notes on intercepted species Proceedings Entomological Society Washington 119 90–111 10.4289/0013-8797.119.1.90

Lee, Y., W. Lee, M. Kanturski, S. Akimoto, R.G. Foottit and S. Lee 2017 Cryptic diversity of the subfamily Calaphidinae (Hemiptera: Aphididae) revealed by comprehensive DNA barcoding PLoS ONE 12(4) e0176582 10.1371/journal.pone.0176582

Von Dohlen, C.D., U. Spaulding, K.B. Patch, K.M. Weglarz, R.G. Foottit, N.P. Havill and G.R. Burke 2017 Dynamic acquisition and loss of dual-obligate symbionts in the plant-sap-feeding Adelgidae (Hemiptera: Sternorrhyncha: Aphidoidea) Frontiers in Microbiology 8 1037 10.3389/fmicb.2017.01037


Robideau, G.P., R.G. Foottit, L.M. Humble, M.K. Noseworthy, T.-Y. Wu, and G.J. Bilodeau 2016 Real-time PCR identification of the ambrosia beetles, Trypodendron domesticum (L.) and Trypodendron lineatum (Olivier) (Coleoptera: Scolytidae) Journal of Applied Entomology 140 299–307 10.1111/jen.12254

Havill, N.P., S. Shiyake, A.L. Galloway, R.G. Foottit, G. Yu, A. Paradis, J. Elkinton, M.E. Montgomery, N. Sano and A. Caccone 2016 Ancient and modern colonization of North America by hemlock woolly adelgid (Adelges tsugae Annand) (Hemiptera: Aphidoidea), an invasive insect from Asia Molecular Ecology 25 2065–2080 10.1111/mec.13589

Zilahi-Balogh, G.M.G., L.M. Humble, R. Foottit, J. Burleigh and A. Stock 2016 History of the balsam woolly adelgid, Adelges piceae (Ratzeburg), in British Columbia, with notes on a recent range expansion Journal Entomological Society of British Columbia 113 21–38 link to pdf

Acheampong, S., G.M.G. Zilahi-Balogh, R.G. Foottit, G.J.R. Judd and T. Dimara 2016 Pacific Flatheaded Borer, Chrysobothris mali Horn (Coleoptera: Buprestidae), found attacking apple saplings in the Southern Interior of British Columbia Journal Entomological Society of British Columbia 113 71–73 link to pdf


Gwiazdowski, R.A., R.G. Foottit, H.E.L. Maw, and P.D.N. Hebert 2015 The Hemiptera (Insecta) of Canada: Constructing a reference library of DNA barcodes PLoS ONE 10(4) e0125635 10.1371/journal.pone.0125635

Hales, D., R.G. Foottit, and H.E.L. Maw 2015 Endemic aphids Aphis carverae sp. nov. and Casimera canberrae (Eastop, 1961) on Epilobium (Onagraceae) threatened by introduced Aphis oenotherae Oestlund, 1887 (Hemiptera: Aphididae: Aphidinae) Austral Entomology 54 278–285

Hales, D., R.G. Foottit, and H.E.L. Maw 2015 Sexual morphs of Aphis acaenovinae Eastop, 1961 (Hemiptera: Aphididae: Aphidinae) The Australian Entomologist 42 19–24

Lowery, D.T., P.M. Vickers, L.A. Bittner, L.W. Stobbs, and R.G. Foottit 2015 Aphid transmission of the Ontario isolate of plum pox virus Journal of Economic Entomology 108 2168–2173 10.1093/jee/tov172


Liu, P., Z.X. Yang, X.M. Chen, and R.G. Foottit 2014 The effect of the gall-forming aphid Schlechtendalia chinensis (Hemiptera: Aphididae) on leaf wing ontogenesis in Rhus chinensis (Sapindales: Anacardiaceae) Annals of the Entomological Society of America 107 242–250 PDF 833kb

Nauum, A.M., R.G. Foottit, H.E.L. Maw and R. Hanner 2014 Real-time PCR for identification of the soybean aphid, Aphis glycines Matsumura Journal of Applied Entomology 138 485–489 10.1111/jen.12114

Duay, J.A.M., R.H. Miller, G.C. Wall, K.S. Pike and R.G. Foottit 2014 Pentalonia nigronervosa Coquerel and Pentalonia caladii van der Goot (Hemiptera: Aphididae) and their relationship to Banana Bunchy Top Virus in Micronesia Pacific Science 68 359–364 10.2984/68.3.5

Miller, R.H., J.A. Duay, K.S. Pike, E. Maw and R.G. Foottit 2014 Review and key to the aphids (Hemiptera: Aphididae) in Micronesia Pacific Science 68 479–492 10.2984/68.4.3

Langor, D.W., E.K. Cameron, C.J.K. MacQuarrie, A. McBeath, A. McClay, B. Peter, M. Pybus, T. Ramsfield, K. Ryall, D. Yemshanov, I. DeMarchant, R. Foottit, and G. Pohl 2014 Non-native species in Canada's boreal zone: diversity, impacts and risk Environmental Reviews 22 1–49 10.1139/er-2013-0083

Foottit, R.G., E. Maw and P.D.N. Hebert 2014 DNA barcodes for Nearctic Auchennorhyncha (Insecta : Hemiptera) PLoS ONE 9(7) e101385 10 10.1371/journal.pone.0101385

Foottit, R.G., and E. Maw 2014 Aphids (Hemiptera: Aphidoidea) of the Prairie Ecozone of Canada 347–369 H. A. Cárcamo and D. J. Giberson Arthropods of Canadian Grasslands (Volume 3): Biodiversity and Systematics, Part I Biological Survey of Canada PDF 189kb


E. Jousselin, A. Cruaud, G. Genson, F. Chevenet, R.G. Foottit and A. Cœur d'acier 2013 Is ecological speciation a major trend in aphids? Insights from a molecular phylogeny of the conifer-feeding genus Cinara Frontiers In Zoology 10 56 18 10.1186/1742-9994-10-56 PDF 972kb; supplementary files 137kb

Hodkinson, I.D., A. Babenko, V. Behan-Pelletier, J. Bocher, G. Boxshall, F. Brodo, S.J. Coulson, W. De Smet, K. Dozsz-Farkas, S. Elias, A. Fjellberg, R. Fochetti, R. Foottit, D. Hessen, A. Hobaek, S. Koponen, A. Liston, O. Makarova, Y. Marusik, V. Michelsen, K. Mikkola, A. Pont, P. Rueda, J. Savage, H. Smith, L. Samchyshyna, G. Velle, V. Vikberg, D. Wall, L. Weider, S. Wetterich, Q. Yu and A. Zinovjev 2013 Chapter 7. Terrestrial and freshwater invertebrates 195–223 Meltofte, H. Arctic Biodiversity Assessment Arctic Council PDF 1.4Mb

Novakova, E., V. Hypsa, J. Klein, R.G. Foottit, C.D. von Dohlen and N.A. Moran 2013 Reconstructing the phylogeny of aphids (Hemiptera : Aphididae) using DNA of the obligate symbiont Buchneria aphidicola Molecular Phylogenetics and Evolution 68 42–54 10.1016/j.ympev.2013.03.016

Teulon, D.A.J., M.A.W. Stufkens, G.M. Drayton, H.E.L. Maw, I.A.W. Scott, S.R. Bulman, M. Carver, C.D. von Dohlen, V.F. Eastop and R.G. Foottit 2013 Native aphids of New Zealand - diversity and host associations Zootaxa 3647(4) 501–517 PDF 85kb


Foottit, R.G., H.E.L. Maw, K.S. Pike and R.H. Messing 2012 Aphids (Hemiptera: Aphididae and Adelgidae) of Hawai'i: Annotated list and key to species of an adventive fauna Pacific Science 66 1–30

Messing, R.H., K.S. Pike and R.G. Foottit 2012 Invasive Aphids in Hawaii College of Tropical Agriculture and Human Resources, University of Hawai'i at Mánoa 261 order form

Mier Durante, M.P., R. Foottit, C.D. von Dohlen and J. Ortego 2012 First American records of Aphis intybi (Hemiptera : Aphididae) with notes on two other related adventive species in Argentina Florida Entomologist 95(4) 1154–1162

Naaum, A.M., R.G. Foottit, H.E.L. Maw and R.H. Hanner 2012 Differentiation between Aphis pomi and Aphis spiraecola using multiplex real-time PCR based on DNA barcode sequences Journal of Applied Entomology 136 704–710 10.1111/j.1439-0418.2012.01706.x

Nakahara, S., and R.G. Foottit 2012 Review of Chirothrips and related genera (Thysanoptera: Thripidae) of the Americas, with descriptions of one new genus and four new species Zootaxa 3251 1–29 PDF 2mb

Pelletier, Y., X. Nie, M.-A. Giguere, U. Nanayakkara, E. Maw and R. Foottit 2012 A new approach for the identification of aphid vectors (Hemiptera: Aphididae) of Potato Virus Y Journal of Economic Entomology 105(6) 1909–1914

Pike, K.S., G. Graf, R.G. Foottit, H.E.L. Maw, C.D. von Dohlen, J. Harpel, A. Pantojay, S. Emmerty, A.M. and Hagerty 2012 Eriosomatine aphids (Hemiptera: Aphididae: Eriosomatinae) associated with moss and roots of conifer and willow in forests of the Pacific Northwest of North America The Canadian Entomologist 144 555–576 PDF 518kb

Ravn, H.P., N.P. Havill, S. Akbulut, R.G. Foottit, M. Serin, M. Erdem, S. Mutun and M. Kenis 2012 Dreyfusia nordmannianae in northern and central Europe: potential for biological control and comments on its taxonomy Journal of Applied Entomology 137 104–417 10.1111/jen.12012 PDF 233kb


Lee, W., H. Kim, J. Lim, H.-R. Choi, Y.-S. Kim, J.-Y. Ji, R.G. Foottit and S. Lee 2011 Barcoding aphids (Hemiptera: Aphididae) of the Korean Peninsula: updating the global data set Molecular Ecology Resources 11 32–37 10.1111/j.1755-0998.2010.02877.x PDF 232kb

Newton, J.S., J. Glasier, H.E.L. Maw, H.C. Proctor and R.G. Foottit 2011 Ants and subterranean Sternorrhyncha in a native grassland in east-central Alberta, Canada The Canadian Entomologist 143 518–523 10.4039/n11-34 PDF 265kb

Park, D.S., R.G. Foottit, H.E.L. Maw and P.D.N. Hebert 2011 Barcoding bugs: DNA-based identification of the true bugs (Insecta: Hemiptera: Heteroptera) PLoS ONE 6 e18749 10.137/journal.pone.0018749 PDF 520kb


Hales, D.H., R.G. Foottit and E. Maw 2010 Morphometric studies of the genus Sitobion Mordvilko 1914 in Australia (Hemiptera: Aphididae) Australian Journal of Entomology 49 341–353 PDF

Castalanelli, M.A., D.L. Severtson, C.J. Brumley, A. Szito, R.G. Foottit, M. Grimm, K Munyard and D.M. Groth 2010 A rapid non-destructive DNA extraction method for insects and other arthropods Journal of Asia Pacific Entomology 13(3) 243–248 10.1016/j.aspen.2010.04.003 PDF

Lee, W., H. Kim, J. Lim, H.-R. Choi, Y. Kim, Y.-S. Kim, J.-Y Ji, R.G. Foottit and S. Lee 2010 Barcoding aphids (Hemiptera: Aphididae) of the Korean Peninsula: updating the global data set Molecular Ecology Resources 11 32–37 10.1111/j.1755-0998.2010.02877.x PDF

Pike, K.S., G. Graf, R.G. Foottit, H.E.L. Maw, G.L. Miller, G.L., J. Harpel, J., A. Pantoja, A. Hagerty and S. Emmert 2010 Molecular and biometric assessment of Myzodium mimulicola (Hemiptera: Aphididae), with new synonymy and host and distributional data The Canadian Entomologist 142(5) 448–457 10.4039/n10-034 PDF

Foottit, R.G., K.D. Floate and H.E.L. Maw 2010 Molecular evidence for sympatric taxa within Pemphigus betae (Hemiptera: Aphididae: Eriosomatinae) The Canadian Entomologist 142(4) 344–353 10.4039/n10-028 PDF

Smirle, M.J., C.L. Zurowski, D.T. Lowery and R.G. Foottit 2010 Relationship of Insecticide Tolerance to Esterase Enzyme Activity in Aphis pomi and Aphis spiraecola (Hemiptera: Aphididae) Journal of Economic Entomology 103(2) 374–378 10.1603/EC09275

Foottit, R.G., H.E.L. Maw, K.S. Pike and R.H. Miller 2010 The identity of Pentalonia nigronervosa Coquerel and P. caladii van der Goot (Hemiptera: Aphididae) based on molecular and morphometric analysis Zootaxa 2358 25–38 PDF


Langor, D.W., L.J. DeHaas, and R.G. Foottit 2009 Diversity of non-native terrestrial arthropods on woody trees and shrubs in Canada Biological Invasions 11(1) 5–19 10.1007/s10530-008-9327-x PDF

Foottit, R.G., H.E.L. Maw and K.S. Pike 2009 DNA barcodes to explore diversity in aphids (Hemiptera: Aphididae and Adelgidae) Redia 92 87–91 PDF

Foottit, R.G., H.E.L. Maw, N.P. Havill, R.G. Ahern and M.E. Montgomery 2009 DNA barcodes to identify species and explore diversity in the Adelgidae (Insecta: Hemiptera: Aphidoidea) Molecular Ecology Resources 9(Suppl. 1) 188–195 10.1111/j.1755-0998.2009.02644.x PDF

Foottit, R.G., D.T. Lowery, H.E.L. Maw, M.J Smirle and G. Lushai 2009 Identification, distribution, and molecular characterization of the apple aphids Aphis pomi and Aphis spiraecola (Hemiptera: Aphididae: Aphidinae) The Canadian Entomologist 141(5) 478–495 10.4039/n08-CPA02 PDF

Gillespie, D.R., D.M.J. Quiring, R.G. Foottit, S.P. Foster and S. Acheampong 2009 Implications of phenotypic variation of Myzus persicae (Hemiptera: Aphididae) for biological control on greenhouse pepper plants Journal of Applied Entomology 133(7) 505–511 10.1111/j.1439-0418.2008.01365.x

Miller, G.L., and R.G. Foottit 2009 The taxonomy of crop pests: The aphids 463–473 Foottit, R. G. and P. H. Adler Insect Biodiversity: Science and Society Wiley-Blackwell Publishing, UK PDF

Foottit, R.G., and P.H. Adler 2009 Insect Biodiversity: Science and Society Wiley-Blackwell Publishing, UK 632

Pike, K.S., G. Graf, R.G. Foottit, H.E.L. Maw, P. Starý, R. Hammon and D.G. Miller 2009 New species of Braggia (Hemiptera: Aphididae) on buckwheat in western North America The Canadian Entomologist 141(6) 561–581 10.4039/n09-048


Foottit, R.G., H.E.L. Maw, C.D. von Dohlen and P.D.N. Hebert 2008 Species identification of aphids (Insecta: Hemiptera: Aphididae) through DNA barcodes Molecular Ecology Resources 8(6) 1189–1201 PDF

Lozier, J.D., R.G. Foottit, G.L. Miller, N.J. Mills and G.K. Roderick 2008 Molecular and morphological evaluation of the aphid genus Hyalopterus Koch (Insecta: Hemiptera: Aphididae), with a description of a new species Zootaxa 1688 1–19 PDF

Raworth, D.A., C.J. French, D.T. Lowery, M.G. Bernardy, M.J. Bouthillier, S. Mathur, C.-K. Chan, R.G. Foottit, H.E.L. Maw, L.A. Wegener and M. Sweeney 2008 Temporal trends in the transmission of Blueberry scorch virus in British Columbia, Canada Canadian Journal of Plant Pathology/Revue canadienne de phytopathologie 30(2) 345–350 Abstract


Raworth, D.A., S. Mathur, M.G. Bernardy, C.J. French, M. Chatterton, C.-K. Chan, R.G. Foottit and E. Maw 2007 Effect of kaolin clay on migrant alate aphids (Hemiptera: Aphididae) in blueberry fields in the context of Blueberry scorch virus Journal of the Entomological Society of British Columbia 104 65–72

Gillespie, D.R., R.R. McGregor, J.A. Sanchez, S.L. Vanlaerhoven, D.M.J. Quiring, B.D. Roitberg, R.G. Foottit, M.D. Schwartz and J.L. Shipp 2007 Dicyphus hesperus (Hemiptera: Miridae) as a success story in development of endemic natural enemies as biological control agents 128–135 C. Vincent, M. Goettel, and G. Lazarovitz Case Studies in Biological Control: A Global Perspective CABI BioScience

Nakahara, S., and R.G. Foottit 2007 Frankliniella intonsa (Trybom) (Thysanoptera: Thripidae): An invasive insect in North America Proceedings Entomological Society of Washington 109 733–734

Miller, G.L., S.E. Halbert and R.G. Foottit 2007 A taxonomic reevaluation of Ovatus mentharius (van der Goot) (Hemiptera: Aphididae) Proceedings Entomological Society of Washington 109 522–529

Havill, N.P., R.G. Foottit and C.D. von Dohlen 2007 History of life cycle evolution and host plant associations of the Adelgidae (Insecta: Hemiptera) inferred from molecular phylogenies Molecular Phylogenetics and Evolution 44 357–370

Messing, R.H., M.N. Tremblay, E.B. Mondor, R.G. Foottit and K.S. Pike 2007 Invasive aphids attack native Hawaiian plants Biological Invasions 9 601–607

Havill, N.P. and R.G. Foottit 2007 Biology and Evolution of Adelgidae Annual Review of Entomology 52 325–349 PDF


Foottit, R.G., S.E. Halbert, G.L. Miller, E. Maw and L.M. Russell 2006 Adventive aphids (Hemiptera: Aphididae) of America North of Mexico Proceedings Entomological Society of Washington 108 583–610

Scudder, G.G.E. and R.G. Foottit 2006 Alien true bugs (Hemiptera: Heteroptera) in Canada: composition and adaptations The Canadian Entomologist 138 24–51

Lowery, D.T., M.J. Smirle, R.G. Foottit and E.H. Beers 2006 Susceptibilities of apple aphid and spirea aphid collected from apple in the Pacific Northwest to selected insecticides Journal of Economic Entomology 99 1369–1374

Messing, R., R. Foottit and K. Pike 2006 New records of invasive aphids in Hawaii Bishop Museum Occasional Papers 88 26–30

Raworth, D., C-K. Chan, R.G. Foottit and E. Maw 2006 Spatial and temporal distribution of winged aphids (Hemiptera: Aphididae) frequenting blueberry fields in southwestern British Columbia and implications for the spread of Blueberry scorch virus The Canadian Entomologist 138 104–113


Zilahi-Balogh, G., R.G. Foottit, G. Ferguson and J.L. Shipp 2005 New records for Rhopalosiphum rufiabdominale (Sasaki) (Hemiptera: Aphididae) on greenhouse tomatoes and peppers Proceedings Entomological Society of Ontario 136 87–89

Pike, K.S., R.G. Foottit, R.H. Miller, O. Idechiil and D.W. Allison 2005 Uroleucon formosanum (Takahashi) and Uroleucon sonchellum (Monell) (Hemiptera, Aphididae): Morphological comparison and diagnosis Proceedings Hawaiian Entomological Society 37 49–63

Lowery, D.T., M.J. Smirle, R.G. Foottit, C.L. Zurowski and E.H. Beers Peryea 2005 Baseline susceptibilities to Imidcloprid for Green Apple Aphid and Spirea Aphid (Homoptera: Aphididae) collected from apple in the Pacific Northwest Journal of Economic Entomology 98 188–194

Selected Publications (before 2005)

Pike, K.S., R.G. Foottit, P. Starý, D.W Allison, G. Graf and H.E.L. Maw 2004 Aphis boydstoni, n. sp., and Aphis ceanothi Clarke (Hemiptera : Aphididae : Aphidinae) on Ceanothus velutinus Douglas, including associated parasitoids Proceedings of the Entomological Society of Washington 106(4) 801–810

Lushai, G., R. Foottit, E. Maw and R. Barrette 2004 Genetic variation in the green apple aphid, Aphis pomi De Geer (Homoptera: Aphididae) detected using microsatellite flanking regions 245–251 Simon, J.-C., C. A. Dedryver, C. Rispe and M. Hulle Aphids in a New Millenium, Proc. VIth Int. Symp. on Aphids INRA Editions, Versailles

Hunt, D.W.A., R.G. Foottit, D. Gagnier and T. Baute 2003 First Canadian records of Aphis glycines (Hemiptera : Aphididae) The Canadian Entomologist 135 879–881

McKenney, D.J., A.A. Hopkin, A.J. Campbell, B.G. Mackey and R.G. Foottit 2003 Opportunities for improved risk assessments of exotic species in Canada using bioclimatic modeling Environmental Monitoring and Assessment 88 445–461

Foottit, R.G., and H.E.L. Maw 2003 Aphids 426–430 Roberts, A., T. Debener and S. Gudin Encyclopedia of Rose Science Elsevier

Miller, R.H., O. Odechiil, R.G. Foottit and K.S. Pike 2003 Uroleucon formosanum (Takahashi) (Homoptera: Aphididae) found on Youngia japonica (L.) DC on Guam and Rota in the Mariana Islands Proceedings of the Hawaiian Entomological Society 36 125–127

Braun, L., M.A. Erlandson, D. Baldwin, J.J. Soroka, P.G. Mason, R.G. Foottit and D.D. Hegedus 2001 Seasonal occurrence, species composition, and parasitism of Lygus spp. in alfalfa, canola, and mustard The Canadian Entomologist 133 565–577

Maw, H.E.L., R.G. Foottit, K.G.A. Hamilton and G.G.E. Scudder 2000 Checklist of the Hemiptera of Canada and Alaska NRC Research Press 220

Watson, G.W., D.J. Voegtlin, S.T. Murphy and R.G. Foottit 1999 Biogeography of the Cinara cupressi complex (Hemiptera: Aphididae) on Cupressaceae, with description of a pest species introduced into Africa Bulletin of Entomological Research 89 271–284

Schwartz, M. D., R.G. and Foottit 1998 Revision of the Nearctic species of the genus Lygus Hahn, with a review of the Palaearctic species (Heteroptera: Miridae) Memoirs on Entomology, International Associated Publishers, Gainesville, Florida 428

Foottit, R.G. 1997 Recognition of parthenogenetic insect species 291–307 Claridge, M. F., Dawah, H. A. and M. R. Wilson Species: The Units of Biodiversity Chapman and Hall, London

Foottit, R.G., and E. Maw 1997 Aphids (Homoptera: Aphidoidea) of the Yukon 387–404 Danks, H.V. and Downes, J.A. Insects of the Yukon Biological Survey of Canada Monograph Series No. 2

Finston, T.L., P.D.N. Hebert and R.G. Foottit 1995 Genome size variation in aphids Insect Biochemistry and Molecular Biology 25 189–196

Loxdale, H. D., J. Hardie, S. Halbert, R. Foottit, N.A.C. Kidd and C.I. Carter 1993 The relative importance of short- and long-term movement of flying aphids Biological Reviews 68 291–311

Foottit, R.G., and W.R. Richards 1993 The Insects and Arachnids of Canada. Part 22. Genera of the Aphids of Canada (Homoptera: Aphidoidea and Phylloxeroidea) Research Branch, Agriculture Canada Publication 1885 766

Schwartz, M.D., and R.G. Foottit 1992 Lygus bugs on the prairies. Biology, systematics, and distribution Research Branch, Agriculture Canada Technical Bulletin 1992-4e 44

Schwartz, M.D., R.G. and Foottit 1992 Lygus species on oilseed rape, mustard, and weeds: A survey across the prairie provinces of Canada The Canadian Entomologist 124 151–158

Foottit, R.G. 1992 The use of ordination methods to resolve problems of species discrimination in the genus Cinara Curtis (Homoptera: Aphidoidea: Lachnidae) 193–221 Sorensen, J. T. and R. G. Foottit Ordination in the study morphology, evolution and systematics of insects: Applications and quantitative genetic rationales Elsevier, Amsterdam

Sorensen, J.T., and R. Foottit 1992 Ordination in the study of the morphology, evolution and systematics of insects: Applications and quantitative genetic rationales Elsevier, Amsterdam 418

Kozar, F. and R.G. Foottit 1992 Tridiscus oetvoesi sp. n. and some zoogeographical features of the scale insect fauna of Canada (Homoptera: Coccoidea) Acta Zoologica Hungarica 38 207–211

Hebert, P.D.N, T.L. Finston and R.G. Foottit 1991 Patterns of genetic diversity in the sumac gall aphid, Melaphis rhois Genome 34 757–762

Foottit, R.G., C. Galvis and L. Bonen 1990 The application of mitochondrial DNA analysis in aphid systematics Acta Phytopathologica et Entomologica Hungarica 25 211–219

Foottit, R.G., and M. Mackauer 1990 Morphometric variation within and between populations of the pine aphid, Cinara nigra (Wilson) (Homoptera: Aphidoidea: Lachnidae), in western North America Canadian Journal of Zoolology 68 1410–1419

Danks, H.V., and R.G. Foottit 1989 Insects of the boreal zone of Canada Canadian Entomologist 121 625–690

Foottit, R.G., and M. Mackauer 1983 Subspecies of the balsam woolly aphid, Adelges piceae (Homoptera: Adelgidae), in North America Annals of the Entomological Society of America 76 299–304

Foottit, R.G., and M. Mackauer 1980 Morphometric variation between populations of the balsam woolly aphid Adelges piceae (Homoptera: Adelgidae) in North America Canadian Journal of Zoology 58 1494–1503

Foottit, R.G., and M. Mackauer 1980 The alate virginopara of Gharesia polunini Stroyan (Homoptera: Aphidoidea) with notes on the biology Canadian Entomologist 112 47–50

Mackauer, M., and R.G. Foottit 1979 A gall midge, Endaphis sp. (Diptera: Cedicomyiidae), as a gregarious aphid parasite Canadian Entomologist 111 615–620