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Leptogastrinae
Schildia gracillima (Walker, 1855)
Nomenclature
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Tribe: LeptogastriniGenus: Schildia
SUMMARY
Head: Face silver pruinose, wide, wider than adjacent ommatidium; mystax light yellow, 2 setae; vertex narrow, narrower than face at clypeal–facial margin, silver pruinose; occipital triangle apruinose, distance between triangle and median eye margin less than adjacent ommatidium; occiput thinly silver pruinose along eye margin, medially silver pruinose, laterally apruinose; postocular setae short, brown; proboscis brown.
Antennae: scape and pedicel light brown, light brown setae dorsally and ventrally; postpedicel proximally light yellow, brown distally, silver pruinose, about 1.5 times as long as combined length of scape and pedicel; stylus brown, about 2/3 as long as postpedicel, composed of 1 element.
Thorax: Predominantly light brown, parts silver and brown pruinose; antepronotum, postpronotum, and median postpronotal lobes silver pruinose; lateral postpronotal lobes apruinose, light yellow; scutum brown, predominantly apruinose, only posterior margin silver pruinose, 2 yellow lateral longitudinal stripes originating at anterior margin but not reaching posterior margin, broader anteriorly and pointed posteriorly, 2 yellow lateral spots positioned predominantly presutural; presutural dc setae: 2 short, 1 intermediate, 2 long, postsutural dc setae: 2 anteriorly oriented as long as intermediate presutural dc setae, acr setae absent, 1 npl and 1 spa seta; anepisternum predominantly silver pruinose sometimes apruinose dorsally, few yellow anepisternal setae on anterior and dorsal margins; anepimeron anteriorly silver and posteriorly brown pruinose, proepimeron silver pruinose, katepisternum anteriorly silver and posteriorly brown pruinose, meron+metanepisternum anteriorly apruinose and posteriorly silver pruinose, metkatepisternum yellow, silver pruinose; scutellum yellow posteriorly and brown medially, silver pruinose, 4–6 very short apical scutellar setae.
Legs: yellow to brown; coxae and trochanters light yellow, trochanters sometimes brown ventrally; pro and mes femora light yellow with 1 transverse light brown band medially, met femur mostly light brown to brown, clubbed in distal 2/5, club brown, yellow transverse band at proximal margin of club, scattered brown setae on pro and mes femora, met femur with distinct rows of brown macrosetae; pro and mes tibiae light yellow with 1 light brown transverse band which is sometimes diffi cult to discern, met tibia brown with yellow transverse band in distal half, 2 times wider than width of tibia, all tibiae with brown erect macrosetae in rows, pro and mes tibiae with 2 long apical macrosetae, met tibia with 2 apical, 2 medial in distal quarter, 4 lateral macrosetae spaced along tibia; tarsus light yellow to light brown, proximal tarsomere always longer than 2 following tarsomeres combined, short and long macrosetae on all tarsomeres; all empodia 1/3 as long as median claw; median claw about 3/4 as long as lateral claw.
Wings: length = 5.3–7.8 mm; few microtrichia scattered on wing, trichoid spicules very short, densely arranged, symmetrical dorsally and ventrally, 40–50 on M1 between r-m and diversion of M1 and M2; cell d large, terminating in M1 and M2, r-m situated at separation of M3 and CuA1; R1 reaching C at the point where R5 joins C but distal to M1 joining C, R2+3 straight proximally and smoothly arching posteriad distally; halter light yellow, knob dark brown, length = 0.9–1.3 mm.
Abdomen: Brown, T1 yellow, T2 yellow anteriorly, sometimes T3-6 also yellow anteriorly; T2 length = 4.9–5.1 mm, T2 with yellow transverse band medially, T2–3 with short, erect, evenly spaced macrosetae, remaining T with irregularly spaced and longer macrosetae, T7–8 with large lateral sensory areas.
Male terminalia epandrial halves fused medially, distal tip arching dorsad, pointed; epandrium and hypandrium entirely fused proximally, gonocoxite easily distinguishable but fused to hypandrium, distinct ventral suture discernible; gonostyli bifid with two apices; Aedeagus: not protruding from hypopygium; dorsal aedeagal sheath with curved ventral protuberances; lateral ejaculatory process cylindrical; Female genitalia: spermathecae occupying only segment 8, individual spermathecal ducts long and coiled; spermathecal reservoirs not sclerotized, as wide as individual ducts, forming a coil.