Comprehensive Description

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General Description

Head: Face silver pruinose, wide, wider than adjacent ommatidium; mystax yellow, 2 setae; vertex wide, wider than face at clypeal–facial margin, silver pruinose; occipital triangle apruinose, distance between triangle and median eye margin more than adjacent ommatidium; occiput laterally light brown pruinose, median dorso-ventral stripe silver pruinose; postocular setae yellow; proboscis brown.

Antennae: scape and pedicel light yellow, light yellow setae dorsally and ventrally; postpedicel predominantly light yellow, light brown dorso-distal, silver pruinose, about 1.8 times as long as combined length of scape and pedicel; stylus brown, 1/4 as long as postpedicel, composed of 1 element.

Thorax: Predominantly brown, parts silver and brown pruinose; antepronotum, postpronotum and median postpronotal lobes apruinose; lateral postpronotal lobes apruinose, light yellow; scutum brown, predominantly apruinose, only dorsal of wing base and posterior margin silver pruinose; presutural dc setae: 1–2 short, 1 long, postsutural dc setae: only a few short anteriorly oriented setae close to posterior margin, 3–4 short acr setae, 1 npl and 1 spa seta; anepisternum predominantly brown, dorsal margin yellow, anteriorly and dorsally silver and remaining parts brown pruinose, few yellow anepisternal setae on anterior and dorsal margins; anepimeron, proepimeron, katepisternum, katepimeron and meron+metanepisternum brown, katepisternum predominantly apruinose, anterior margin silver and dorsal margin brown pruinose, meron+metanepisternum apruinose, remaining sclerites brown pruinose, metkatepisternum yellow, silver pruinose; scutellum brown, silver pruinose, few very short apical scutellar setae.

Legs: light yellow to light brown; coxae and trochanters light yellow; pro and mes femora light yellow with 2 transverse light brown bands, met femur mostly light yellow to light brown, clubbed in distal 1/3, club brown, scattered brown macrosetae on pro and mes femora, met femur with distinct rows of brown macrosetae; pro and mes tibiae light yellow with 2 light brown transverse bands,
met tibia brown with median yellow transverse band, more than 3 times as long as width of tibia, all tibiae with yellow to light brown erect macrosetae in rows, pro and mes tibiae with 3 long apical macrosetae, met tibia with 1 median and 2 apical macrosetae; tarsus light yellow to light brown, proximal tarsomere always longer than 2 following tarsomeres combined, short and long macrosetae on all tarsomeres; pro and mes empodia minute, met empodium more than half as long as median claw; median claw more than half as long as lateral claw.

Wings: length = 4.2–4.4 mm; few microtrichia, trichoid spicules short, symmetrical dorsally and ventrally, 12–14 on M1 between r-m and diversion of M1 and M2; cell d small, terminating in M2 and M3, r-m situated just distally to separation of M3 and CuA1; R1 reaching C proximal to R5 and M1 joining C, R2+3 straight proximally and smoothly arching posteriad distally; halter light yellow, knob dark brown, length = 0.8 mm.

Abdomen: Brown; T2 length = 4.0 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 lateral sensory areas.

Male terminalia: ♂ unknown; 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.

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Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Bayless, Keith

Source: Leptogastrinae LifeDesk

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