Milichiella dominicae
Differs from congeners in the combination of short pubescent arista, presence of 3+1 dc, 2 prsc, brown calypter, yellow tips of fore and mid tibia, T2-5 silvery microtomentose except for black tip.
Male coloration and vestiture: frons subshiny black, ocellar triangle and orbital plate brown microtomentose, frontal plate greyish, lunule brown, basoflagellomere black, face grey microtomentose, palpus black; thorax with mesonotum brown microtomentose, scutellum same, pleura slightly more greyish microtomentose except for bilobed shiny spot on anepisternum and spot on katepisternum, wing hyaline, veins brown, brown spot at tip of vein R1 absent, calypter brown, halter black, legs black except for tips of fore and mid tibia and all basitarsi; abdomen with T2-5 silvery microtomentose except for black anterolateral corner of T2 and extended tip of T5. Female coloration and vestiture: halter black, abdomen with T2-5 brown microtomentose.
Morphology. Head: frons with 2+0.5 orbital and 2 frontal setae, anterior frontal seta medioclinate. In males frons 2.0x as wide at posterior margin than at base of antenna, arista about 5.2x as long as basoflagellomere wide, pubescence on arista very short, posterior eye margin with slight notch (4oc) and emargination (2oc).
Thorax: 3+1 (female: 2-3) dc, 2 prsc, 1 pprn, 1+0.7 prs, 3 keps setae, posterior prsc about as long as posterior dc, seta between posterior prsc and posterior dc present. Wing with vein R4+5 and M1 weakly converging (1.8), and ultimate section of vein M1 2.7x 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 mostly with 2 lines of setae but triangular extension with more setae, T2-4 posterior margin with 1 row of setulae. S5 1.3x as long as wide, 1,6x as long and 3.2x as wide as S4, roughly triangular, setulose. Male genitalia with apical seta on cercus shorter than longest epandrial seta, 1 seta on subepandrial plate, surstylus 0.5x as long as epandrium high, not bent, dilated apically (1.5x), 2.8x as long as wide, structure of lateral surface smooth, medial surface with three long sensilla along anterior margin.
Body length: 2.9 mm; wing length: 2.6 mm.