A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea) Author Whitworth, Terry L. Author Yusseff-Vanegas, Sohath text Zootaxa 2019 2019-08-26 4659 1 1 146 journal article 25918 10.11646/zootaxa.4659.1.1 0cbe0b8e-2019-4f5a-8336-2d4d9fcd8bf6 1175-5326 3377239 57309E14-0330-4ED7-BCDA-355EE6618215 Mesembrinella vogelsangi ( Mello, 1967 ) ( Figs 8 , 53–54 , 143–144 , 214 , 257 , 300 , 344 , 385 , 429 ) Huascaromusca vogelsangi Mello, 1967: 46 . Holotype male (FIOC), not examined. Type locality: Aragua , Venezuela . Huascaromusca vogelsangi : Kosmann et al. (2013: 77) ; Wolff & Kosmann (2016: 867) ; Wolff et al. (2017: 253) ; Marinho et al. (2017 : tab. 1); Velásquez et al. (2017: 109) . Mesembrinella vogelsangi : Cerretti et al. (2017 : tab. 2). Diagnosis. A brownish, medium-sized fly averaging 11.6 mm (11–12/5) in length.Abdomen with distinct dark marginal bands on posterior edge of each segment; T4–5 sometimes with purplish reflections; subcostal sclerite setose; femora all orange; male frons narrow, about 0.017 of head width at narrowest, about half width of anterior ocellus. Redescription. Male. Head. Frons narrow, 0.017 ( 0.015 –0.020 /3) of head width at narrowest, about half width of anterior ocellus; fronto-orbital slender, silvery when viewed from above, orange when viewed from below, frontal setae ascending about halfway to vertex; frontal vitta orange, obliterated about midway; parafacial golden to orange, narrow above, broader below; gena orange with horizontal row of stout setae on ventral edge and small scattered dark setae, posterodorsal corner with silvery tomentum extending from occiput; postgena orange with tan setae; occiput with silvery tomentum and fine golden setae; median occipital sclerite broad, shiny dark orange; antenna orange; palpus typical; eye with median facets about 2x size of lateral facets; ocellar triangle small, anterior ocellus slightly larger than posterior ocelli; facial ridge with dark brown supravibrissal setae extending about 1/5 of distance to antennal base. Thorax brown with dense tan tomentum, with irregular shiny brown areas and a pair of shiny anterolateral brown spots in presutural area; postsutural area similar, with irregular bare areas; pleura orange; chaetotaxy: ac 1, dc 2:3, ia 0, ph 1, ppn 3x 3, kat 1, meron with fine setae and short horizontal portion, 1 pair converging ap, sa absent, lat weak, bas stout, pb weak, 1 disc subscutellum moderately developed; spiracles medium-sized, anterior one pale yellow, posterior one orange; legs: femora orange, tibiae and tarsi brown. Wing hyaline, faintly yellowish, slightly darker yellow along costa; subcostal sclerite setose; tegula orange, basicosta brown; section IV 0.27 of section III; calypters with tan discs; upper calypter with dark rim and short reddish setae, lower calypter with brown rim and long reddish setae. Abdomen brownish with dark band on posterior edge of each segment [in the three examined males the abdomens are dull and may be discolored; female abdomens were much brighter blue]; T4–5 sometimes with faint purplish reflections; lateral margin of T3 with two pairs of setae; posterior margins of T4–5 with rows of stout setae; disc of T5 with horizontal row of stout setae midway, rest of disc with sparse, short, fine setae. Terminalia in lateral view with surstylus curved backward [unusual for M . aeneiventris species-group], cercus with apical hook ( Fig. 53 ); in posterior view, basal half of cerci broad, distal half tapering to a point ( Fig. 54 ); in dorsal and lateral views, hypophallic lobes narrow ( Figs 143–144 ). T6, STS7+8, pre- and postgonite, ejaculatory sclerite and ST6 as in Fig. 214 ; ST2–5 as in Fig. 257 . Female. Similar to male except frons 0.235 (0.23–0.24/2) of head width at narrowest. Females tend to have more purple on abdomen than males, especially toward posterior end. T6 of WV shape, T7 slender and weakened midway, T8 as separate sclerites ( Fig. 300 ). ST6–8 and hypoproct as in Fig. 344 ; spermathecae filiform ( Fig. 385 ). ST1–5 as in Fig. 429 . Material examined. Venezuela , Aragua . 1 ♂*, 1 ♂, 1 ♀ *, 1 ♀ , Edo. Aragua, 18–27.ii.1971 , 1100 m , G. & M. Wood ( CNC ); 1 ♂, Aragua , Giradot , Rancho Grande , 14.vii.1979 , R.O. Schuster , R.W. Brooks , A.A. Grigarick , J. McLaughlin ( UCDC ) . Distribution. Venezuela . Marinho et al. (2017) listed Colombia . Remarks. The male and female terminalia in M. vogelsangi are similar to those of M. zurquiensis sp. nov. , but frons width in the male is very different. In M. vogelsangi the frons is quite narrow, about 0.02 of head width at narrowest, vs. much wider, 0.09 of head width at narrowest, in M. zurquiensis . No specimens were barcoded.