Milichiella villarricae Brake, 2009

Male coloration and vestiture: frons subshiny black, ocellar triangle and upper orbital plates shiny black, lunule brown, basoflagellomere basomedially yellow, face grey microtomentose, palpus yellow; thorax with mesonotum brown microtomentose, scutellum same, pleura silvery grey on dorsal half, wing brownish, veins brown, brown spot at tip of vein R1 weak or absent, calypter white, margin yellow, halter yellow, legs black except for apically yellow fore coxa, yellow tip of fore and mid tibia, and all basitarsi; abdomen with T2-5 silvery microtomentose except for posterior half of T5 which is brown microtomentose anteriorly and shiny at tip.
Morphology. Head: frons with 2+0.3 orbital and 2 frontal setae, anterior frontal seta medioclinate. In males frons 2x as wide at posterior margin than at base of antenna, arista about 4.9x as long as basoflagellomere wide, pubescence on arista short, less long than base or arista wide, posterior eye margin with notch (5-6oc) and narrow emargination (1oc).
Thorax: 2 dc, 1 prsc, 1 pprn, 1 prs, 2 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 converging (2), and ultimate section of vein M1 2.1x as long as penultimate section. Fore femur normal setulose, tibial organ absent.
Male abdomen: posteromedial triangular projection of T1 into T2 very weak. Tergal chaetotaxy: T2 anterolateral corner with 2-3 lines of setae, T2+5 posterior half setulose, T3-4 posterior margin with 1-2 rows of setulae. S5 1.4x as long as wide, 1.5x as long and 1.7x as wide as S4, posterior margin indented, strongly setulose with short setulae. Male genitalia with apical seta on cercus slightly shorter than longest epandrial seta; epandrium with striate anteroventral extension and 0 setae on subepandrial plate, surstylus 0.2x as long as epandrium high, not dilated, 0.9x as long as wide, structure of lateral surface striate, medial surface without setulae.