Nephochaetopteryx rettenmeyeri Dodge

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 : 61-63

Nephochaetopteryx rettenmeyeri Dodge

( Fig. 28 )

Nephochaetopteryx rettenmeyeri Dodge, 1968b: 423 (key), 435 (description of male). Type locality: Panama, Canal Zone, Barro Colorado Island. Other references: Pape (1996: 262; catalog); Mello-Patiu & Santos (2001: 309; description of female).

Type material examined. HOLOTYPE ♁ ( SEMC): Barro Colo. Is., C.Z. / 12.II.1955 N0. 834 / Carl W. Retten- meyer [printed and handwritten on rectangular white label bordered with red] // From over swarm / raid of Eciton / burchelli [printed on rectangular white label bordered with red] // HOLOTYPE / Nephochaetopteryx / rettenmeyeri / Dodge [printed and handwritten on rectangular white label bordered with red]. [Holotype in good condition, with terminalia extended.]

PARATYPES (2). ♁ ( MNRJ): Barro Colo. Is., C.Z. / 12.II.1959 No. 853 / Carl W. Rettenmeyer [printed and handwritten on rectangular white label] // Over fan of / Eciton / burchelli raid [handwritten on rectangular white label] // Paratypus [printed on rectangular green label] // PARATYPE / Nephochaetopteryx / rettenmeyeri / Dodge [printed and handwritten on rectangular white label bordered with red] // Museu Nacional / Collection / UFRJ / Rio de Janeiro / Brazil [printed and handwritten data on rectangular white label] [paratype in good condition, without terminalia; a microvial pinned beneath the specimen contains only the phallus and gonites]. ♁ ( MNRJ): Barro Colo- rado I / Canal Zone Panama / 23.III.1965 No. / C.W. & M.E. Rettenmeyer [printed and handwritten on rectangular white label] // Paratype [printed on rectangular green label bordered with black] // PARATYPE / Nephochaetopteryx / rettenmeyeri / Dodge [printed and handwritten on rectangular white label bordered with red] [paratype in good condition, with phallus glued to specimen label and epandrium and cercus cleared and preserved in glycerin in a microvial pinned beneath the specimen].

Additional material examined. Panama. Panama: Canal Zone , Barro Colorado Island, 27.I.1955, leg. C. Rettenmeyer (1 ♀, MNRJ) .

Redescription. Male. Length = 7.0– 7.1 mm (n = 3).

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

Thorax. Chaetotaxy: dorsocentrals 2+4 (first two weak); intra-alars 2+2; supra-alars 1+3, notopleurals 2 subprimaries; anepisternals 6; merals 5. 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 golden microtomentum on anterior 4/5 of dorsal and lateral surfaces. Sternites 1 to 4 light brown with yellowish setulae and with marginal setae.

Terminalia. Sternite 5 brown with long and short slender setae, with a shallow cleft, not passing the anterior margin of lobe; lobe rounded and with a tuft of short setulae; arms divergent, with rounded apex. Cercus elongate, with a preapical protuberance on dorsal margin in lateral view and with a preapical clutch of pointed and stout setae on ventral margin ( Fig. 28A ). Cercal prongs parallel with divergent tips ( Fig. 28B ). Tip of cercus curved posteriorly ( Fig. 28B ). Cercus without setulae on the apex, with thick setae on cercal base ( Figs 28 A–B). Surstylus conical, with rounded apex, without setulae on apex and on anterior margin, with fine setae apically ( Fig. 28A ). Pregonite with enlarged base and elongate distal portion strongly curved anteriorly, with small pointed setae on posterior margin ( Fig. 28C ). Postgonite elongate, with tip curved anteriorly bearing a long seta, with small pointed setae on anterior margin ( Fig. 28D ). Basiphallus with basal portion narrowed, curved dorsally ( Fig. 28E ). Distiphallus elongate, with dorsal margin convex and apical margin rounded ( Fig. 28E ). Ventral margin of distiphallus rounded with a small thumb-like slightly curved projection ( Fig. 28E ). Lateral wall of distiphallus with grooves ( Fig. 28E ). Vesica clubbed, with curved apex and with microtrichia in lateral view ( Fig. 28E ). Inner process of vesica short and hammer-shaped in lateral view ( Fig. 28E ). Lateral and median styli short, of about one-third of the of widest portion of lateral wall of distiphallus ( Fig. 28E ). Median stylus with a basal projection dorsally ( Fig. 28E ).

Female. Terminalia as described by Mello-Patiu & Santos (2001, figs 21–22, 39).

Distribution. NEOTROPICAL—Panama ( Panama).

Remarks. This species differs from the others in the genus in having cercus with a preapical clutch of stout and pointed setae on ventral margin.

Figures

FIGURE 28. Nephochaetopteryx rettenmeyeri Dodge, 1968, male terminalia. Paratype from Canal Zone, Barro Colorado Island, Panama (SEMC). A. Epandrium, surstylus and cercus, left lateral view; arrow showing cluster of strong and pointed preapical setae on cercus. B. Cerci, dorsal view (setation omitted on the left side). C. Pregonite, left lateral view. D. Postgonite, left lateral view. E. Phallus, left lateral view. Abbreviations: bp = basiphallus; dp = distiphallus; ip = inner process of vesica; ls = lateral stylus; ms = median stylus; ve = vesica. Scale bars: A, B = 0.1 mm; C, D, E = 0.05 mm.