Nephochaetopteryx canga, Carvalho-Filho & Esposito & Mello-Patiu, 2021

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 : 19

publication ID	https://doi.org/ 10.11646/zootaxa.4928.1.1
publication LSID	lsid:zoobank.org:pub:DF804097-A21A-4D6E-88C1-FFE201F3598F
DOI	https://doi.org/10.5281/zenodo.4544438
persistent identifier	https://treatment.plazi.org/id/7F77CE11-040D-850D-FF69-DA6415DA52B4
treatment provided by	Plazi
scientific name	Nephochaetopteryx canga
status	sp. nov.

Treatment

Nephochaetopteryx canga View in CoL sp. nov.

( Fig. 6 View FIGURE 6 )

Type material. HOLOTYPE ♁ ( MPEG): Brasil Pará / Serra Norte / N1- CANGA / 31 .X.3X.1985 [printed and handwritten on rectangular white label] // Armadilha / 1,6m / Suspensa [= suspended trap at a height of 1.6 meters] [printed and handwritten on rectangular white label] // Brasil Pará / J. Dias [printed on rectangular white label] // MPEG DIP / 12181645 [printed on rectangular white label]. [Holotype in good condition, with terminal portion of abdomen, sternite 5 and rest of terminalia cleared and stored in glycerin in a plastic microvial pinned beneath the specimen.]

Description. Male (holotype). Length = 5.3 mm.

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

Thorax. Chaetotaxy: dorsocentrals 2+4 (first two weak); intra-alars 2+2; supra-alars 1+3, notopleurals 1, subprimary; anepisternals 6; merals 6. Ctenidium consisting of six spines. Mid femur with two median setae and without a differentiated posteroventral seta. Wing hyaline, with 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 golden microtomentum on anterior 4/5 on dorsal and lateral surfaces. Sternites 2 to 4 yellow with a brown median strip, covered with yellowish setulae and with marginal setae.

Terminalia. Sternite 5 yellowish-brown, with small setae restricted to posterior half; cleft deep, nearly reaching middle of sternite; lobe reduced, quadrate and with a tuft of short setulae; arm very small, glossiform ( Fig. 6E View FIGURE 6 ). Syntergosternite 7+8, epandrium and cercus brown. Cercus short, tapering distally, with rounded tip bent dorsally ( Fig. 6B View FIGURE 6 ). Cercal base with long and thick setae ( Figs 6 View FIGURE 6 A–B). Cercal prongs parallel, with divergent tips and without setulae on distal third ( Fig. 6A View FIGURE 6 ). Surstylus triangular, with setulae restricted to basal half and small pointed setae at apex ( Fig. 6B View FIGURE 6 ). Pregonite with distal half perpendicular to base; anterior margin with a prominent glossiform projection; posterior margin with small pointed setae ( Fig. 6C View FIGURE 6 ). Postgonite shorter than pregonite, narrowed at apex, which is gently curved anteriorly; anterior margin with one long seta (shorter than postgonite) and minute and pointed setae ( Fig. 6D View FIGURE 6 ). Basiphallus short, about half as long as distiphallus and narrowed posteriorly ( Fig. 6F View FIGURE 6 ). Distiphallus with anterior margin serrated and with grooves laterally ( Fig. 6F View FIGURE 6 ). Vesica angled, with distal portion widened in lateral view ( Fig. 6F View FIGURE 6 ). Inner process of vesica longer than wide in lateral view ( Fig. 6F View FIGURE 6 ). Lateral and median styli very short, of about one-third of width of lateral wall of distiphallus, and both inserted close to apical surface of distiphallus ( Fig. 6F View FIGURE 6 ).

Female. Unknown.

Etymology. “Canga” is the name of an uncommon, savanna-like vegetation that grows on the iron ore-bearing rocks of the region of Carajás in the Brazilian Amazon, where the type specimen was collected. Therefore, the specific epithet canga is a noun in apposition.

Distribution. NEOTROPICAL—Brazil (Pará).

Remarks. This species is similar to N. molinai and N. inca sp. nov. in the shape of the cercus and pregonite. However, it differs from N. molinai in having a very small lobe of sternite 5 and the projection of the anterior margin of the pregonite glossiform, and from N. inca sp. nov. by the shape of the vesica and gonites.