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 peregrina Aldrich, 1922 ( Figs 79–80 , 169–170 , 227 , 270 , 314 , 358 , 399 , 443 , 477 ) Mesembrinella peregrina Aldrich, 1922: 22 . Holotype male (USNM), examined. Type locality: Espirito Santo , Brazil . [NB: the specimen is labeled as “ Mesembolia peregrina ” (see Fig. 477 ).] Mesembrinella peregrina : Peris & Mariluis (1984: 262) ; Toma & Carvalho (1995: 136) ; Marinho et al. (2012: 142) ; Kosmann et al. (2013: 78) ; Wolff (2013: 121); Marinho et al. (2017 : tab. 1); Cerretti et al. (2017 : tab. 2). Diagnosis. A medium-sized fly averaging 10.6 mm (10–11/5) in length. Stem vein setose dorsally; wing yellowish along costa; subcostal sclerite bare; facial ridge with short row of dark brown supravibrissal setae at base. Male frons narrow, 0.01 of head width at narrowest; epandrium, cerci and surstyli as in Figs 79–80 . Female T6 of WV shape ( Fig. 314 ). Redescription. Male. Head. Frons narrow, 0.016 (0.01–0.02/5) of head width at narrowest. Fronto-orbital, parafacial, gena and postgena golden when viewed from above, orange when viewed from below; frontal vitta orange when viewed from above, with golden streaks when viewed from below; fronto-orbital broader below, narrowing to thin line at about 1/3 of its length, frontal vitta obliterated; gena and lower parafacial with horizontal row of stout dark setae; antenna pale yellow; occiput with heavy whitish tomentum and fine, pale setae; median occipital sclerite shiny dark orange; eye with median facets about 4x size of lateral facets; ocellar triangle small, anterior ocellus slightly larger than posterior ocelli; facial ridge with few short, stout, dark brown supravibrissal setae at base. Thorax orange-brown with whitish tomentose stripes; pleural area orange with whitish tomentum; chaetotaxy: with ac 2:2, dc 2:3, ia 1, ph 1, ppn 3x 3, kat variable 1:1 or 1:2, meral setae typical, 1 pair converging ap, 1 sa, 1 lat, 1 stout bas, 1 weak pb, 1 disc; subscutellum prominently developed; spiracles yellow, medium-sized; legs entirely orange. Wing with anterior edge along costa and veins faintly yellowed, area around crossvein r-m with dark macula; subcostal sclerite orange with dense pubescence; basicosta and tegula orange; stem vein with row of fine, tan setae above; section IV 0.56 of section III; upper calypter pale with dark rim and tan setae; lower calypter tan disc and pale rim with fringe of long pale setae. Abdomen. T1+2 with anterior half yellow, posterior half yellow-orange; T3–5 purple-orange with whitish tomentum. T1+2 and T3 each with two pairs of small lateral marginal setae; T4 with posterior row of stout setae, disc of T5 only with sparse, scattered, short to medium-long, fine setae. Terminalia in lateral view with surstylus curved slightly backward, cercus with apical hook ( Fig. 79 ); in posterior view cerci with narrow base, broader midway then tapered to blunt tip ( Fig. 80 ); phallus in lateral view with medium-long, stout epiphallus with slight backward curve ( Fig. 169 ); broad in dorsal view, with circular hypophallic lobes and an apical fork on acrophallus ( Fig. 170 ); T6, STS7+8, pre- and postgonite, ejaculatory sclerite and ST6 as in Fig. 227 ; ST1–5: ST3–4 narrowed, as in Fig. 270 . Female. Similar to male except frons 0.246 (0.24–0.26/5) of head width at narrowest. T6 of FU shape, nearly flat; T7 with wide and deep indentation on anterior edge; T8 as pair of sclerites ( Fig. 314 ); ST6–8 and hypoproct as in Fig. 358 ; spermathecae filiform ( Fig. 399 ); ST1–5 as in Fig. 443 . Type material examined. HOLOTYPE ♂ ( Brazil , Espririto Santo ; USNM ; Fig. 477 ), labeled: Espirito Santo / Brazil .; Mesembolia / peregrina / Ald. ; Type No. / 25887 / U.S. N.M. [red label]; USNMENT01288288. Additional material examined. Brazil , Paraná . 1 ♂, Piraguard , Mananciais da Serra , 25°25ʹS 49°03ʹW , 9.iii.2003 , Malaise, A.J.C . Agular ( USNM ) . Rio de Janeiro . 1 ♂, Serviço Febre Amarela , ix.1938 , M.E.S. Bras ( USNM ) ; 1 ♂, Petrópolis E de Rio Le Vallon Alt Mosella , 24.i–23.ii.1959 , D’Albuquerquea, R.P . Mello ( CNC ) . Santa Catarina . 2 ♀♀ , Nova Teutônia , 27°11ʹS 52°23ʹW , 23.xi.1936 , F. Plaumann ( NHMUK ) ; 1 ♀ , same data ex- cept 27°11ʹS 52°23ʹW , 19.v.1964 , F. Plaumann ( CNC ) . São Paulo . 1 ♂*, 1 ♀ *, 1 ♀ , Estação Biológica de Boracéia Salesópolis , 14–19.x.1970 , J.H. Guimarães , J.W. Boyes ( CNC ) ; 1 ♂, same data except #FN49 ( CNC ) ; 1 ♂*, same data except #FN35 ( CNC ) ; 1 ♀ , same data except #FN32 ( CNC ) ; 1 ♀ , same data except iii.1992 , J.H. Guimarães ( USNM ) ; 1 ♂, Casa Grande Boracéia Field Station , Grid 23 kmp 092837 , 19–26.ii.1975 , T.E. Rogers ( FSCA ) . Distribution. Brazil . Remarks. No specimens were barcoded.