Nephochaetopteryx pacatubensis 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 : 51

Nephochaetopteryx pacatubensis Lopes

( Fig. 23 )

Nephochaetopteryx pacatubensis Lopes, 1975a: 279 . (description of male) Type locality: Brazil, Ceará, Pacatuba. Other references: Pape (1996: 261; catalog).

Type material examined. HOLOTYPE ♁ ( MNRJ): Pacatuba / Ceara, 350 m / BRASIL [printed on rectangular white label] // H.S. Lopes / 23.VIII.73 [printed and handwritten on rectangular white label] // Holotype [printed on rectangular red label]”; “ Nephochaetopteryx / pacatubensis / n. sp. / Holotypus / Det. H.S. Lopes [printed and handwritten on rectangular white label bordered with red] // MNRJ / 2203 [printed and handwritten on rectangular white label]. [Holotype glued to a card triangle, lacking legs, with a large hole laterally in the thorax; the abdomen is detached and glued to another card triangle; phallus and gonites in a microvial pinned beneath the specimen; the cercus and epandrium missing.]

Redescription. [A description of the external morphology of N. pacatubensis is not given, since the only known specimen is fragile and crushed, thus hampering a detailed analysis and description. The original description provided by Lopes (1975a) is detailed.]

Male terminalia [descriptions of cercus and surstylus based on the illustrations of Lopes (1975a)]. Cercus short, almost straight, with rounded apex. Cercal prongs parallel with divergent tips in dorsal view ( Fig. 23A ). Dorsal surface of cercus with two excavations ( Fig. 23A ). Surstylus triangular with rounded apex. Pregonite with distal portion perpendicular to base, with pointed tip and with anterior margin with a glossiform projection; posterior margin with pointed setulae ( Fig. 23B ). Postgonite elongate, with tip curved anteriorly and with a long seta on anterior margin ( Fig. 23C ). Basiphallus T-shaped and short, of about one-third of the length of distiphallus ( Fig. 23D ). Distiphallus elongate with dorsal margin sinuous and apical margin rounded in lateral view ( Fig. 23D ). Ventral margin of distiphallus with a large plate-like structure with a lobed projection and serrated margin ( Fig. 23D ). Vesica elongate, angled and narrow, with a short middle triangular projection ( Fig. 23D ).

Female. Unknown.

Distribution. NEOTROPICAL—Brazil (Ceará).

Remarks. This species differs from the others in the genus in having cercus with two conspicuous dorsal excavations.

Figures

FIGURE 23. Nephochaetopteryx pacatubensis Lopes, 1975, male terminalia of holotype (MNRJ). A. Cerci, dorsal view; arrows showing excavations (setation omitted on the right side). Redrawn from Lopes (1975a). B. Pregonite, lateral view. C. Postgonite, lateral view. D. Phallus, lateral view.Abbreviations: bp = basiphallus; dp = distiphallus; ve = vesica. Scale bars: 0.1 mm.