Nephochaetopteryx molinai 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 : 47-49

Nephochaetopteryx molinai Lopes

( Fig. 21 )

Nephochaetopteryx molinai Lopes, 1942: 186 (redescription of female). Type locality: Brazil, Rio de Janeiro. Other references: Dodge (1968a: 279; key); Lopes (1969: 28; catalog); Lopes (1982: 303; description of larva); Pape (1996: 261; catalog); Mello-Patiu & Santos (2001: 307–309; description of female).

Type material examined. HOLOTYPE ♁ ( MNRJ): Col. Inst. O. Cruz [= collection of Instituto Oswaldo Cruz] / n. 9.017 [printed and handwritten on rectangular white label bordered with black] // N. 11299 / Diptera / Inst. Oswaldo Cruz [printed and handwritten on rectangular white label bordered with black] // Rio-2.VIII.34 / dentro casa [= inside a residence] / S. Lopes [printed and handwritten on rectangular white label] // Holotype [rectangular red label with printed data] // Typus [printed on rectangular red label bordered with black] // Nephochaetopteryx / molinai / n. sp. / Holotypus H.S. Lopes [handwritten on rectangular white label bordered with black]. [Holotype in good condition, with cleared abdomen glued to the specimen; terminalia cleared and mounted in permanent slide (number 11299) and stored in slide drawer 88 ( MNRJ).]

Additional material examined. Brazil. Rio de Janeiro: Angra dos Reis, IV.1972, leg. H.S. Lopes (1 ♁, 1 ♀, MNRJ) ; Grajaú, leg. H.S. Lopes (1 ♁, 1 ♀, MNRJ) . Santa Catarina: Nova Teutônia, leg. F. Plaumann (1 ♁, MZUSP) .

Redescription. Male. Length = 6.5–7.0 mm (n = 4).

Head. Fronto-orbital and parafacial plates and postocular strip with golden microtomentum. Frontal vitta reddish-brown. Five to six frontal setae. Gena and postgena golden. Palpus brown.

Thorax. Chaetotaxy: dorsocentrals 2+4 (first two weak); intra-alars 2+2; supra-alars 1+3, notopleurals 1 subprimary; anepisternals 5; merals 5. Mid femur with two median setae and without a differentiated posteroventral seta. Ctenidium consisting of four spines. Wing hyaline, with a faint dark spot beginning in the terminal portion of vein R 1, filling the distal third of cell r 1 and the upper half of the distal half of cell r 2+3; 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 yellowish with a brown median strip, quadrate and with yellowish setulae and with marginal setae.

Terminalia. Sternite 5 brown, with a deep cleft, nearly reaching middle of sternite; lobe rounded with small pointed setae; arms convergent, with rounded apex, covered with setae ( Fig. 21E ). Cercus shorter than epandrium, almost straight and with rounded apex gently curved posteriorly in lateral view ( Fig. 21A ). Cercal prongs parallel with divergent tips in dorsal view ( Fig. 21B ). Lateral margin of cercal base and cercal prong without setulae ( Figs 21 A–B). Surstylus conical, with rounded tip, with setulae restricted to basal portion ( Fig. 21A ). Pregonite with pointed apex and distal half perpendicular to base; posterior margin convex with small pointed setae ( Fig. 21C ). Postgonite elongate, with posterior margin sinuous and narrowed, with apex pointed, gently curved anteriorly; anterior margin with one long seta (longer than postgonite) and minute and pointed setae ( Fig. 21D ). Basiphallus short, about half as long as distiphallus, T-shaped in lateral view ( Fig. 21F ). Distiphallus with posterior margin sinuous and apical margin rounded ( Fig. 21F ). Lateral wall of distiphallus with small cuticular spines and ventral margin serrated ( Fig. 21F ). Vesica angled with a conspicuous middle rounded projection and with basal and distal portion narrowed and mid-region widened in lateral view ( Fig. 21F ). Inner process of vesica with distal portion rectangular in lateral view ( Fig. 21F ). Lateral and median styli very short, of about one-third of width of widest portion of lateral wall of distiphallus, and both inserted medially in distiphallus ( Fig. 21F ).

Female. Unknown.

Distribution. NEOTROPICAL—Brazil (Rio de Janeiro, Santa Catarina).

Remarks. This species differs from the other species in the genus by the shape of the vesica.

Figures

FIGURE 21. Nephochaetopteryx molinai Lopes, 1942, male terminalia. Specimen from Nova Teutônia, Santa Catarina, Brazil (MZUSP). A. Epandrium, surstylus and cercus, left lateral view. B. Cerci, dorsal view (setation omitted on the right side). C. Pregonite, lateral view. D. Postgonite, lateral view. E. Sternite 5, ventral view (setation omitted on the right 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.