Milichiella cingulata
Content
Description
Body length: 2.3-2.8 mm; wing length: 2.4-2.8 mm.
Male coloration and vestiture: frons subshiny black, ocellar triangle and orbital plate brown microtomentose, frontal plate greyish, lunule brown, basoflagellomere black, face dark grey microtomentose, palpus black; thorax with mesonotum densely reddish brown microtomentose, scutellum and pleura same except for grey microtomentose area around anterior spiracle and base of fore coxa, wing slightly browngrey, veins brown, brown spot at tip of vein R1 absent, calypter brown with dark margin, halter black, legs black except for yellow tips of tibiae, and basitarsi, fore and hind tarsus with conspicous yellow brush; abdomen with T2-5 brown microtomentose except for silvery wide anterior margins of T3-4, which widen laterally on T3-4, T5 silvery anteriorly, middle brown and tip subshiny black. Female coloration and vestiture: halter yellow, abdomen with T2-5 brown microtomentose.
Morphology. Head: frons with 2+0.3 orbital and 2 frontal setae, anterior frontal seta medioclinate. In males frons about 2.5x as wide at posterior margin than at base of antenna, arista about 4.1x as long as basoflagellomere wide, pubescence on arista very short, posterior eye margin with slight notch (3oc) and very slight emargination (1-2oc).
Thorax: 2 dc, 1 prsc, 1 pprn, 1 prs, 2 keps setae, posterior prsc as long as posterior dc, seta between posterior prsc and posterior dc small. Wing with vein R4+5 and M1 nearly parallel, and ultimate section of vein M1 2.5x as long as penultimate section. Fore femur normal setulose, tibial organ absent.
Male abdomen: Posteromedial triangular projection of T1 into T2 present. Tergal chaetotaxy: T2 anterolateral corner with more than 3 lines of setae, T2-5 with scattered setulae on posterior part, lateral margins with long setae. S5 1.7x as long as wide, 1.7x as long and 1.9x as wide as S4, posterior margin indented, setulose in hour glass shape. Male genitalia with apical seta on cercus as long as longest epandrial setae, 1 seta on subepandrial plate, surstylus 0.6x as long as epandrium high, bent posteriorly, dilated apically (1.6x), 3.6x as long as wide, structure of lateral surface smooth, medial surface with row of 4-5 long setae near anterior margin.
Male coloration and vestiture: frons subshiny black, ocellar triangle and orbital plate brown microtomentose, frontal plate greyish, lunule brown, basoflagellomere black, face dark grey microtomentose, palpus black; thorax with mesonotum densely reddish brown microtomentose, scutellum and pleura same except for grey microtomentose area around anterior spiracle and base of fore coxa, wing slightly browngrey, veins brown, brown spot at tip of vein R1 absent, calypter brown with dark margin, halter black, legs black except for yellow tips of tibiae, and basitarsi, fore and hind tarsus with conspicous yellow brush; abdomen with T2-5 brown microtomentose except for silvery wide anterior margins of T3-4, which widen laterally on T3-4, T5 silvery anteriorly, middle brown and tip subshiny black. Female coloration and vestiture: halter yellow, abdomen with T2-5 brown microtomentose.
Morphology. Head: frons with 2+0.3 orbital and 2 frontal setae, anterior frontal seta medioclinate. In males frons about 2.5x as wide at posterior margin than at base of antenna, arista about 4.1x as long as basoflagellomere wide, pubescence on arista very short, posterior eye margin with slight notch (3oc) and very slight emargination (1-2oc).
Thorax: 2 dc, 1 prsc, 1 pprn, 1 prs, 2 keps setae, posterior prsc as long as posterior dc, seta between posterior prsc and posterior dc small. Wing with vein R4+5 and M1 nearly parallel, and ultimate section of vein M1 2.5x as long as penultimate section. Fore femur normal setulose, tibial organ absent.
Male abdomen: Posteromedial triangular projection of T1 into T2 present. Tergal chaetotaxy: T2 anterolateral corner with more than 3 lines of setae, T2-5 with scattered setulae on posterior part, lateral margins with long setae. S5 1.7x as long as wide, 1.7x as long and 1.9x as wide as S4, posterior margin indented, setulose in hour glass shape. Male genitalia with apical seta on cercus as long as longest epandrial setae, 1 seta on subepandrial plate, surstylus 0.6x as long as epandrium high, bent posteriorly, dilated apically (1.6x), 3.6x as long as wide, structure of lateral surface smooth, medial surface with row of 4-5 long setae near anterior margin.
Diagnosis
Differs from congeners in the combination of ocellar triangle brown microtomentose, mesonotum reddish brown microtomentose, and male T2-5 brown microtomentose except for silvery wide anterior margins of T3-4, which widen laterally on T3-4, T5 silvery anteriorly, middle brown and tip subshiny black.