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 cyaneicincta ( Surcouf, 1919 ) ( Figs 73–74 , 163–164 , 224 , 267 , 311 , 355 , 396 , 440 ) Ochromyia cyaneicincta Surcouf, 1919: 69 . Holotype female (MNHN), not examined. Type locality: Brazil . Eumesembrinella cyaneicincta : Peris & Mariluis (1984: 264) ; Toma & Carvalho (1995: 141) ; Kosmann et al. (2013: 77) ; Wolff & Kosmann (2016: 866) ; Marinho et al . (2017 : tab. 1). Mesembrinella cyaneicincta : Cerretti et al. (2017 : tab. 2). Diagnosis. A fairly large dark fly averaging 13 mm (12–14/5) in length. Postpronotal lobe 2x 2; anterior margin of wing weakly infuscated from costa to beyond R 2+3 ; dorsum of thorax yellow-brown with pale tomentose stripes; T1+2–T5 with bluish-purple bands on posterior margin in good specimens. Epandrium, cerci and surstyli as in Figs 73–74 . Female terminalia as in Fig. 311 . Redescription. Male. Head. Frons broad, 0.073 (0.07–0.08/3) of head width at narrowest, about 1/3 broader than width of parafacial at level of lunule. Fronto-orbital, frontal vitta, parafacial, gena and postgena pale orange with pale tomentum; fronto-orbital broad, frontal setae ascending 60% of distance to vertex; upper 2/3 of frontal vitta obliterated; gena with horizontal row of stout brown setae midway, otherwise with sparsely scattered small, dark setae; postgena with pale tomentum and golden setae; occiput with heavy pale yellow tomentum and dark yellow setae; median occipital sclerite shiny orange; proximal 1/3 of arista orange, distal 2/3 tan; palpus typical; eye with median facets about 2x size of lateral facets; ocellar triangle medium-sized, anterior ocellus about 2x size of posterior ocelli; short row of orange supravibrissal setae ascending about 1/6 of distance to antennal base. Thorax. Dorsum yellow-brown with pale tomentose stripes, pleura orange with pale tomentum; chaetotaxy: ac 0:2, dc 2:3, ia 0, ph 1, ppn 2x 2, kat 1:1, meral setae fine and weak, typical, 1 pair of parallel ap, sa and lat absent, 1 bas, 1 weak pb, 1 disc; subscutellum weakly developed; spiracles small, yellow; fore leg entirely orange, mid- and rear tibiae and tarsi tan. Wing faintly infuscated from costa to vein R 1+2 ; subcostal sclerite with weak pubescence only; basicosta and tegula orange; section IV 0.22 of section III; upper and lower calypters pale orange; rim of upper calypter dark with short yellowish setae, rim of lower calypter pale with long, yellow setae. Abdomen. Varying from blue to purple, sometimes reddish. T1+2–5 with purple bands at rear margin, bands on T1+2 and T5 often narrow, bands on T3–4 broader; disc of T5 with dense, medium-long, fine setae only. Terminalia in lateral view with surstylus curved sharply backward ( Fig. 73 ); in posterior view, base of cercus broad with uniform taper to tip, tip of surstylus sharply curved, almost at 90° angle ( Fig. 74 ); phallus in lateral view with moderate epiphallus, curved posteriorly ( Fig. 163 ); in dorsal view, hypophallic lobes wide midway, with fine serrations ( Fig. 164 ); T6, STS7+8, pre- and postgonite, ejaculatory sclerite, ST6 and hypandrium as in Fig. 224 ; ST2–5 slender, as in Fig. 267 . Female. Similar to male except frons 0.266 (0.26–0.27/5) of head width at narrowest. T6 of OV shape; T7 continuous with suture midway; T8 as separate sclerites ( Fig. 311 ); ST6–8 and hypoproct as in Fig. 355 ; spermathecae filiform ( Fig. 396 ). ST2–5 as in Fig. 440 . Material examined. Brazil , Bahia . 1 ♂*, Alcobaça , [located around 17°31ʹ08ʺS 39°11ʺ45ʹW , on east coast], ii.1971 , P.C. Elias ( NHMUK ) . Rio de Janeiro . 1 ♂*, 1 ♀ , Tingua , Est. Rio. , vi.1940 , R.C. Shannon ( USNM ) ; 1 ♂♦ ( TLW393 ) , nr Desengano State PK, site #2, 6–10.v. 1999 , 200 m, B.V. Brown ( LACM ) . Rondônia . 1 ♀ ♦ ( TLW394 ) , 62 km , SE Ariquemes , 15–22.iii.1981 , W. Hanson , G. Bohart ( LACM ) . São Paulo . 1 ♂, 1 ♀ *, Registro , 2.xii.1965 , R. Inoue ( CNC ) . Distribution. Brazil . Marinho et al. (2017) listed Colombia . Remarks. No barcodes were obtained from specimens of this species in this study. Marinho et al . (2017) argued that the subspecific taxon Eumesembrinella cyaneicincta pauciseta Guimar „es, 1977 should be treated as a separate, valid species and that it would be treated as such in a forthcoming paper. We have not seen sufficient material to be able to comment on this issue.