Nephochaetopteryx cyaneiventris Lopes

Carvalho-Filho, Fernando Da Silva, Esposito, Maria Cristina & Mello-Patiu, Cátia Antunes De, 2021, Revision of Nephochaetopteryx Townsend, 1934 (Diptera: Sarcophagidae), Zootaxa 4928 (1), pp. 1-83 : 25

Nephochaetopteryx cyaneiventris Lopes

( Fig. 9 )

Nephochaetopteryx cyaneiventris Lopes, 1936: 86 (description of male). Type locality: Brasil, S„o Paulo, Alto da Serra (= Paranapiacaba). Other references: Lopes (1969: 28; catalog); Pape (1996: 260; catalog); Mello-Patiu & Santos (2001: 305–307; description of female).

Sarcohelicobia elegans Blanchard, 1939: 795 (description of female). Type locality: Argentina, Misiones .

Nephochaetopteryx elegans: Lopes (1969: 28 ; catalog, new combination); Pape (1996: 260; catalog); Mulieri et al. (2010: 19; proposal of synonymy, examination of holotype female).

Type material examined. PARATYPES (2). ♁ ( MNRJ): São Paulo / Adaserra [= Alto da Serra ] / 559b [handwritten on rectangular white label] // Paratype [printed on rectangular green label] // Cotypus [printed on rectangular red label bordered with black] // Nephochaetopteryx cyanei / ventris Lopes / v.936 Det. H.S. Lopes / Paratypus [printed on rectangular white label] // Museu Nacional / Collection / UFRJ / Rio de Janeiro / Brazil [printed on rectangular white label] [paratype in good condition]. ♁ ( MZUSP) : São Paulo / Cantareira / 559a [printed on rectangular white label with handwritten information] // Cotypus [printed on red label bordered with black] // Nephochaetopte / ryx cyanei / ventris Lopes / v.936- Det. H.S. Lopes / Paratypo [printed on rectangular white label] [paratype in good condition] .

Additional material examined. Brazil. Paraná: Jundiaí do Sul, Fazenda [= Farm] Monte Verde , 16.XI.1987, PROFAUPAR, Malaise trap, [no collector] (1 ♁, DZUP) ; Londrina , 12.X.1982, rotting banana, leg. O. Mielke (3 ♁♁, DZUP) . Rio de Janeiro: Grajaú , leg. H.S. Lopes (1 ♁, 1 ♀, MNRJ; 2 ♀♀, MZUSP) ; Petrópolis , leg. H.S. Lopes (2 ♀♀, MZUSP) .

Redescription. Male. Length = 4.8–5.5 mm (n = 9).

Head. Fronto-orbital and parafacial plates, postocular strip, gena and postgena golden with golden microtomentum. Frontal vitta black with upper half reddish-brown. Five frontal setae. Palpus brown.

Thorax. Chaetotaxy: dorsocentrals 2+4 (first two weak); intra-alars 2+2; supra-alars 1+3; anepisternals 5; merals 5–6. Mid femur with two median setae and without a differentiated posteroventral seta. Ctenidium consisting of four spines. Wing hyaline; vein R 4+5 setulose dorsally to crossvein r-m.

Abdomen. Tergites brown with a band of bluish-gray microtomentum on anterior 4/5 of dorsal and lateral surfaces. Sternites 1 to 4 brown, quadrate, covered with whitish setulae and with marginal setae.

Terminalia. Sternite 5 brown with a deep medial cleft nearly reaching middle of sternite; lobe rounded and with a tuft of short setulae; arm elongate and narrow, gently curved posteriorly ( Fig. 9E ). Syntergosternite 7+8, epandrium and cercus brown. Cercal base with a prominent protuberance projecting above dorsal surface ( Fig. 9A ). Tip of cercus pointed and curved anteriorly ( Fig. 9A ). Cerci in dorsal view with convergent tips and outer lateral margin sinuous ( Fig. 9B ). Setae and setulae restricted to cercal base; cercal prong with spines ( Figs 9 A–B). Surstylus longer than wide, with rounded apex, with setulae restricted to basal half and with setae at apex and anterior margin ( Fig. 9A ). Pregonite shorter than postgonite, with enlarged base and pointed apex curved anteriorly ( Fig. 9C ). Postgonite almost straight, tapering distally with a long seta on anterior margin ( Fig. 9D ). Basiphallus short, about one-third as long as distiphallus ( Fig. 9F ). Distiphallus with dorsal margin angled and rounded apical margin striated ( Fig. 9F ). Ventral margin of distiphallus serrated ( Fig. 9F ). Vesica strongly angled in lateral view, with pointed apex ( Fig. 9F ). Inner process of vesica rectangular in lateral view ( Fig. 9F ). Median and lateral styli tubular and elongate, of about half of width of widest portion of lateral wall of distiphallus ( Fig. 9F ).

Female. Terminalia as described by Mello-Patiu & Santos (2001, figs 7–8, 32).

Distribution. NEOTROPICAL—Argentina (Buenos Aires, Misiones), Brazil (Paraná, Rio de Janeiro, S„o Paulo).

Remarks. This species differs from the other species in having cercal base with a conspicuous projection. Nephochaetopteryx cyaneiventris shares with N. affinis , N. orbitalis , N. psittacocercus sp. nov. and N. coendu sp. nov. cerci with spines.

This species seems to be restricted to southern South America, where it appears to be relatively common. In the city of Curitiba (state of Paraná), it was collected in a butterfly trap (information from specimen label) and from a pig carcass ( Vairo et al. 2011). In Buenos Aires ( Argentina), N. cyaneiventris (treated as N. elegans ) was collected only in forests in traps baited with dog feces ( Mulieri et al. 2008).

Figures

FIGURE 9. Nephochaetopteryx cyaneiventris Lopes, 1936, male terminalia. Specimen from Petrópolis, Rio de Janeiro (MZUSP). A. Epandrium, surstylus and cercus, left lateral view; arrow showing rounded dorsal projection. B. Cerci, dorsal view (spines and setation omitted on the left side). C. Pregonite, left lateral view. D. Postgonite, left lateral view. E. Sternite 5, ventral view (setation omitted on the left side). F. Phallus, lateral view. Abbreviations: bp = basiphallus; dp = distiphallus; ip = inner process of vesica; ls = lateral stylus; ms = median stylus; ve = vesica. Scale bars: A, B, E = 0.1 mm; C, D, F = 0.05 mm.