Milichiella tricincta
Content
Description
Body length: 2.0-2.3 mm; wing length: 1.9-2.0 mm.
Male coloration and vestiture: frons black, ocellar triangle and orbital plates shiny black, lunule black, basoflagellomere black, face black microtomentose, palpus black; thorax with mesonotum subshiny black, scutellum and pleura slightly microtomentose, wing white, veins pale, brown spot at tip of vein R1 absent, calypter white, halter black, legs black; abdomen with T2 very slightly silvery microtomentose, T3-5 silvery microtomentose except for shiny tip of T5 (the usually bent part). Female coloration and vestiture: halter yellow, abdomen with T1-4 brown microtomentose dorsally, T5 shiny.
Morphology. Head: frons with 2 orbital and 2 frontal setae, anterior frontal seta slightly medioreclinate. In males frons 2.1x as wide at posterior margin than at base of antenna, arista about 4.9x as long as basoflagellomere wide, pubescence on arista short, posterior eye margin with slight notch (2-3oc) and slight emargination (1oc). Female posterior eye margin with notch (5oc) and emargination (2-3oc).
Thorax: 1 dc, 1 prsc, 1 pprn, 1 prs, 1+0.7 keps setae, posterior prsc less than 0.8x as long as posterior dc, seta between posterior prsc and posterior dc absent. Wing with vein R4+5 and M1 converging (2.0), and ultimate section of vein M1 2.5-4 (2.9)x as long as penultimate section. Fore femur normal setulose, tibial organ absent.
Male abdomen: Posteromedial triangular projection of T1 into T2 weak. Tergal chaetotaxy: T2 anterolateral corner with single line of setae, T2-5 posterior margin with one row of small setulae. S5 1.3x as long as wide, 1.9x as long and 2.6x as wide as S4, slightly setulose, posterior margin indented. Male genitalia with apical seta on cercus not longer than epandrial setae, 1 seta on subepandrial plate, surstylus 0.5x as long as epandrium high, dilated posteroapically (1.9x), 3.1x as long as wide, structure of lateral surface smooth, medial surface without setulae, some longer sensilla at anterior margin.
Male coloration and vestiture: frons black, ocellar triangle and orbital plates shiny black, lunule black, basoflagellomere black, face black microtomentose, palpus black; thorax with mesonotum subshiny black, scutellum and pleura slightly microtomentose, wing white, veins pale, brown spot at tip of vein R1 absent, calypter white, halter black, legs black; abdomen with T2 very slightly silvery microtomentose, T3-5 silvery microtomentose except for shiny tip of T5 (the usually bent part). Female coloration and vestiture: halter yellow, abdomen with T1-4 brown microtomentose dorsally, T5 shiny.
Morphology. Head: frons with 2 orbital and 2 frontal setae, anterior frontal seta slightly medioreclinate. In males frons 2.1x as wide at posterior margin than at base of antenna, arista about 4.9x as long as basoflagellomere wide, pubescence on arista short, posterior eye margin with slight notch (2-3oc) and slight emargination (1oc). Female posterior eye margin with notch (5oc) and emargination (2-3oc).
Thorax: 1 dc, 1 prsc, 1 pprn, 1 prs, 1+0.7 keps setae, posterior prsc less than 0.8x as long as posterior dc, seta between posterior prsc and posterior dc absent. Wing with vein R4+5 and M1 converging (2.0), and ultimate section of vein M1 2.5-4 (2.9)x as long as penultimate section. Fore femur normal setulose, tibial organ absent.
Male abdomen: Posteromedial triangular projection of T1 into T2 weak. Tergal chaetotaxy: T2 anterolateral corner with single line of setae, T2-5 posterior margin with one row of small setulae. S5 1.3x as long as wide, 1.9x as long and 2.6x as wide as S4, slightly setulose, posterior margin indented. Male genitalia with apical seta on cercus not longer than epandrial setae, 1 seta on subepandrial plate, surstylus 0.5x as long as epandrium high, dilated posteroapically (1.9x), 3.1x as long as wide, structure of lateral surface smooth, medial surface without setulae, some longer sensilla at anterior margin.