Mesembrinella cyaneicincta ( Surcouf, 1919 )

Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146 : 123-124

publication ID	https://doi.org/ 10.11646/zootaxa.4659.1.1
publication LSID	lsid:zoobank.org:pub:57309E14-0330-4ED7-BCDA-355EE6618215
persistent identifier	https://treatment.plazi.org/id/03DA87E6-0F40-FFAE-FF19-B95835C7FDD0
treatment provided by	Plazi
scientific name	Mesembrinella cyaneicincta ( Surcouf, 1919 )
status

Treatment

Mesembrinella cyaneicincta ( Surcouf, 1919)

( Figs 73–74 View FIGURES 69–74 , 163–164 View FIGURES 163–172 , 224 View FIGURES 222–228 , 267 View FIGURES 266–279 , 311 View FIGURES 306–311 , 355 View FIGURES 350–369 , 396 View FIGURES 370–400 , 440 View FIGURES 439–453 )

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) View Cited Treatment ; 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 View FIGURES 69–74 . Female terminalia as in Fig. 311 View FIGURES 306–311 .

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 View FIGURES 69–74 ); in posterior view, base of cercus broad with uniform taper to tip, tip of surstylus sharply curved, almost at 90° angle ( Fig. 74 View FIGURES 69–74 ); phallus in lateral view with moderate epiphallus, curved posteriorly ( Fig. 163 View FIGURES 163–172 ); in dorsal view, hypophallic lobes wide midway, with fine serrations ( Fig. 164 View FIGURES 163–172 ); T6, STS7+8, pre- and postgonite, ejaculatory sclerite, ST6 and hypandrium as in Fig. 224 View FIGURES 222–228 ; ST2–5 slender, as in Fig. 267 View FIGURES 266–279 .

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 View FIGURES 306–311 ); ST6–8 and hypoproct as in Fig. 355 View FIGURES 350–369 ; spermathecae filiform ( Fig. 396 View FIGURES 370–400 ). ST2–5 as in Fig. 440 View FIGURES 439–453 .

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.

NHMUK	Natural History Museum, London
USNM	Smithsonian Institution, National Museum of Natural History
LACM	Natural History Museum of Los Angeles County
CNC	Canadian National Collection of Insects, Arachnids, and Nematodes

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Taxonomy

Kingdom	Animalia
Phylum	Arthropoda
Class	Insecta
Order	Diptera
Family	Calliphoridae
Genus	Mesembrinella