Milichiella circularis
Specimens have been collected in pineapple fields, near compost, and at light.
Differs from congeners in the combination of shiny or subshiny ocellar triangle, brown microtomentose mesonotum, male abdomen silvery microtomentose on lateral sides of T2, anterior half of T3, T4 except for posterior margin, and anterior two thirds of T5.
Male coloration and vestiture: frons subshiny black, ocellar triangle and orbital plates shiny or subshiny depending on angle of light, lunule brown, basoflagellomere black, face greyish microtomentose, palpus black; thorax with mesonotum brown microtomentose, scutellum and pleura same, wing hyaline, veins light brown, brown spot at tip of vein R1 absent, calypter white with yellow margin, halter black, legs black except for yellow tarsi; abdomen silvery microtomentose on lateral sides of T2, anterior half of T3, T4 except for posterior margin, and anterior two thirds of T5; silvery area more extensive in some specimens.
Morphology. Head: frons with 2 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 4.7x as long as basoflagellomere wide, pubescence on arista very short, posterior eye margin with wide notch (6oc) and narrow emargination (2oc).
Thorax: 2 dc, 2 prsc, 2 pprn, 1+0.7 prs and row of shorter setae, 2+0.5 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 converging (2.1), and ultimate section of vein M1 1.3-1.7x as long as penultimate section. Fore femur slightly stronger setulose, tibial organ absent.
Male abdomen: posteromedial triangular projection of T1 into T2 present. Tergal chaetotaxy: T2 anterolateral corner mostly with 2 lines of setae but triangular extension with more setae, T2-5 silvery parts bare, black parts setulose, setae at lateral margins of T2 relatively short. S5 2x as wide and long as S4, roundish, posterior margin indented, scarce setulae. Male genitalia with 1 seta on subepandrial plate, surstylus 0.7x as long as epandrium high, bent posteriorly, dilated apically (1.7x), 3.3x as long as wide, structure of lateral surface smooth, medial surface with 3-5 setulae along anterior margin moving medially basally.
Body length: 2.8-3.5 mm; wing length: 2.6-2.8 mm.