Revision of Nephochaetopteryx Townsend, 1934 (Diptera: Sarcophagidae) Author Carvalho-Filho, Fernando Da Silva fernandofilho@museu-goeldi.br Author Esposito, Maria Cristina esposito@ufpa.br Author Mello-Patiu, Cátia Antunes De fernandofilho@museu-goeldi.br text Zootaxa 2021 2021-02-17 4928 1 1 83 journal article 7431 10.11646/zootaxa.4928.1.1 cfbb768d-ea35-404f-bd57-c51c200e0207 1175-5326 4544406 DF804097-A21A-4D6E-88C1-FFE201F3598F Nephochaetopteryx spinosa Dodge ( Fig. 31 ) Nephochaetopteryx spinosa Dodge, 1968b: 423 (key), 437 (description of male). Type locality: Panama , Canal Zone, Barro Colorado Island. Other references: Pape (1996: 262 ; catalog). Type material examined. HOLOTYPE ♁ ( SEMC ): PANAMA-Canal Zone / Barro Colorado Island / 24.IV.1956 / Carl W. & Morlan E. / Rettenmeyer No. [printed and handwritten on rectangular white label bordered with red] // HOLOTYPE / Nephochaetopteryx / spinosa / Dodge [printed and handwritten on rectangular white label bordered with red]. [ Holotype in good condition, with terminalia extended and one detached wing glued to the specimen label.] Additional material examined. Brazil . Rondônia : Vilhena , 15.X.1986 , leg. C. Elias (1 ♁, DZUP ) . Paraguay . Canindeyú : Reserva Natural del Bosque Ubaracajú : Jejui-mí , bosque bajo inundado [= lowland flooded forest], Malaise trap , 29.III–9.IV.1996 , leg. A.C.F. Costa (1 ♁, DZUP ) . Redescription. Male . Length = 5.0–7.0 mm (n = 3). Head. Fronto-orbital, parafacial plates and postocular strip with golden microtomentum. Frontal vitta black, with basal half reddish-brown. Five frontal setae. Gena and postgena with golden microtomentum. Palpus brown. Thorax. Chaetotaxy: dorsocentrals 2+4 (first two weak); intra-alars 2+2; supra-alars 2+3, notopleurals 1 subprimary; anepisternals 7; merals 5. Ctenidium consisting of four spines. Mid femur with two median setae and a differentiated posteroventral seta. Wing hyaline; vein R 4+5 setulose dorsally to crossvein r-m. Abdomen. Tergites brown with a band of grayish microtomentum on anterior 4/5 of dorsal and lateral surfaces. Sternite 2 yellow, sternites 3 and 4 brown with yellowish setulae and with marginal setae. Terminalia. Sternite 5 brown, longer than wide; with a shallow cleft, not surpassing the anterior margin of lobe; lobe rounded, with a tuft of short setulae; arm small, with rounded apex ( Fig. 31E ). Cercus shorter than epandrium, in lateral view straight with rectangular tip bearing a small point on ventral margin ( Fig. 31A ). Cercal prongs parallel in dorsal view ( Fig. 31B ). Cercus without setulae on outer lateral and apical margins, with thick setae on proximal region ( Figs 31 A–B). Surstylus almost triangular, with rounded apex, a patch of setulae close to anterior margin and small and pointed setae restricted to posterior half ( Fig. 31A ). Pregonite widened, strongly curved anteriorly with some spine-like setae on posterior margin; sinuous anterior margin with a finger-like projection basally ( Fig. 31C ). Postgonite shorter than pregonite, tapering distally, curved anteriorly, with small, pointed setae and thick seta on anterior margin ( Fig. 31D ). Basiphallus short (about one third length of distiphallus), T-shaped ( Fig. 31F ). Distiphallus L-shaped with distal portion widened, ventral margin serrated ( Fig. 31F ). Vesica L-shaped with a conspicuous middle rectangular projection ( Fig. 31F ). Inner process of vesica short ( Fig. 31F ). Lateral and median styli short, of about one-third width as the widest portion of lateral wall of distiphallus, and both inserted close to apical surface of distiphallus ( Fig. 31F ). Distribution. NEOTROPICAL—Brazil (Rondônia), Panama ( Panama ), Paraguay ( Canindeyú ). Remarks. This species is similar to N. pallidiventris and N. boruca sp. nov. in having a T-shaped basiphallus, an L-shaped vesica and male sternite 5 longer than wide. Nephochaetopteryx pallidiventris differs from N. spinosa in having vesica with a rounded middle projection. In N. spinosa this projection is rectangular. The differences between N. spinosa and N. boruca sp. nov. are mentioned in the remarks under the latter species.