Definitions For Glossary Terms



FACE
In most chalcids the entire frontal surface of the head below the anterior ocellus and between and below the eyes to the mouth margin; in Mymaridae a similar region but below the transverse suture and between the preorbital sutures. [drawing][photo]
FACET
One of the lens-like divisions on the surface off the compound eye, each of which forms the surface of an ommatidium. [drawing]
FEMORAL DEPRESSION
Oblique depression on the mesopleuron that extends from near the mesocoxa toward the base of the forewing, which receives the mesofemur when this is appressed to the thorax. [drawing][photo][photo]
FEMUR
(pl., femora) Third segment of a leg that articulates basally with the trochanter and apically with the tibia. [drawing]
FILIFORM ANTENNA
Antenna that looks whip-like because the segments of the flagellum are subequally wide or narrow slightly toward the apex.
FILUM SPINOSUM
A row of differentiated, thickened or peg-like setae along the apical margin of the linea calva. [drawing]
FIRST ABSCISSA OF RADIAL SECTOR (RS1) SETAL LINE
In Trichogrammatidae, a setal line that extends posterobasally from the stigma; in literature on Chalcididae this setal line is designated as the Radial Sector (RS) vein or setal line, and RS1 is used for what is designated as RS2 in Trichogrammatidae. [drawing]
FIRST AXILLARY SCLERITE
One of three axillary sclerites of the forewing; typically an elongate rod-like sclerite with several protrusions and margins that articulate (distally) with the humeral plate of the forewing, (anteriorly and anteromesally) with the anterior notal wing process, (laterally) with the second axillary sclerite, and (posteriorly) with the posterior notal wing process. [photo] [photo]
FIRST BRANCH OF CUBITAL VEIN (CU1) SETAL LINE
In Trichogrammatidae, used for a longitudinal setal line between the second branch of cubital vein (cu2) setal line and the median setal line. [drawing]
FIRST GONAPOPHYSIS    See first valvula
FIRST VALVIFER
A more or less triangular to spindle shaped sclerite of the ovipositor, which is articulated to the semicircular sheet dorsally, the inner plate of the ovipositor ventrally, and the outer plate of the ovipositor apically (see also gonocoxa). [drawing]
FIRST VALVULA
Gonapophysis of the eighth abdominal segment, which forms the ventral portion of the ovipositor stylets; the first valvulae are a pair of lance-like structures that are interlocked along their dorsal length with the ventrolateral margins of the fused second valvulae by the olistheter so as to move anteriorly and posteriorly in a saw-like cutting motion. [drawing][drawing]
FLAGELLAR SEGMENT
One segment-like subsection of the flagellum; sometimes called a flagellomere. [photo]
FLAGELLOMERE    See flagellar segment
FLAGELLUM
The antenna beyond the pedicel, which in chalcids consists of 1-12 flagellar segments or flagellomeres and often is differentiated into three regions, the anellus, funicle and clava. [drawing]
FORAMEN
(pl., foramina) Any opening in a body wall through which organs pass from one region to another. [photo]
FORAMEN MAGNUM    See occipital foramen
FOREWING VENATION    See venation
FOREWINGS
Pair of wings borne on the mesothorax.
FOSSA
A deep pit.
FOVEA
A depression or pit.
FRENAL AREA    See frenum
FRENAL LINE/SULCUS/CARINA
Transverse row of differentiated sculpture, groove or ridge that differentiates a posterior region of the scutellum, the frenum. [drawing][photo]
FRENUM
Posteriorly differentiated region of the scutellum anterior to any marginal rim that is delineated by a transverse carina, groove, row of foveae, or other change of sculpture; sometimes called the frenal area. [drawing][photo]
FRONS    See upper face
FRONTAL CARINA    See preorbital carina
FRONTAL FORK
Term sometimes used for a V-shaped frontal sulcus and a synonym of frontofacial sulcus. [photo]
FRONTAL SULCUS
Transverse groove on the face below the anterior ocellus that is above and not connected to the scrobal sulcus or interantennal area; the term is sometimes used synonymously with frontofacial sulcus, which is connected to the scrobal sulcus or interantennal area (see also frontal fork). [photo]
FRONTAL TRABECULA    See preorbital trabecula
FRONTOFACIAL RIDGE
Term sometimes used for a transverse ridge across the face above the scrobal depression, resulting from an abrupt change in angle and differentiating the anterior margin of the frontovertex. [photo]
FRONTOFACIAL SULCUS
Transverse to more or less V-shaped grooves on the upper face that medially join or intersect the scrobal sulcus and/or interantennal area (see also frontal sulcus). [photo][photo]
FRONTOGENAL SUTURE    See malar sulcus
FRONTOVERTEX
Term used for the composite vertex and that part of the upper face that is more or less dorsal compared with a more vertical part when the upper face is abruptly angled at some level above the torulus (see also frontofacial ridge). [photo]
FUNICLE
The region of the antennal flagellum between the anellus/anelli and clava; sometimes called the funiculus. [drawing]
FUNICULAR SEGMENT
One segment-like subsection of the funicle of the antenna. [drawing]
FURCAL PIT
A small 'hole' along the midline of the pleurosternum of each of the three thoracic regions; the furcal pit is external indication of an invagination that forms the furcal phragma of each thoracic region. [photo][photo]
FURCAL PLATE    See first valvifer