Milichiella bella
Differs from congeners in the combination of grey frons with dark spots and the brown anterior margin of the wing.
Male coloration and vestiture: frons greyish with four longitudinal rows of 3-4 small black dots, ocellar triangle and orbital plate grey brown microtomentose, frontal plate silvery grey microtomentose, lunule brown, basoflagellomere black, face silvery grey microtomentose, palpus black; thorax with mesonotum bluish grey microtomentose with brown spots at bases of setae and setulae, scutellum bluish grey microtomentose except for brown anterior margin and posterior tip, pleura slightly greyish brown microtomentose, wing hyaline, anterior margin brownish, veins brown, brown spot at tip of vein R1 absent, calypter brown, halter black, legs black; abdomen with T2-5 silvery microtomentose except for brown posterior margin of T5.
Morphology. Head: frons with 2+0.7 orbital and 2+0.6 frontal setae, middle frontal seta medioclinate. In males frons 2.4x as wide at posterior margin than at base of antenna, arista about 6.0x as long as basoflagellomere wide, pubescence on arista short, but not as long as base of arista wide, posterior eye margin with notch (4-5oc) and slight emargination (1oc).
Thorax: 3+1 dc, 3 prsc, 1 pprn, 1+0.6+0.4 prs, 2+0.8 keps setae, posterior prsc about as long as posterior dc, seta between posterior prsc and posterior dc absent. Wing with vein R4+5 and M1 weakly converging (1.6), 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 present. Tergal chaetotaxy: T2 anterolateral corner with 2-3 lines of setae, T2-5 posterior margin with one row of setulae. S5 1.3x as long as wide, 1.6x as long and 2.6x as wide as S4, apodemes at anterior tips of S4 and S5, setulose. Male genitalia with apical seta on cercus about as long as longest epandrial seta, 1 seta on subepandrial plate, surstylus 0.4x as long as epandrium high, slightly bent anteriorly, dilated posteroapically (1.5x), 1.8x as long as wide, structure of lateral surface smooth, medial surface without setulae, some longer sensilla along anterior margin.
Body length: 2.6 mm; wing length: 2.5 mm.