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

Nephochaetopteryx cuzco View in CoL sp. nov.

( Fig. 8 View FIGURE 8 )

Type material. HOLOTYPE ♁ ( MNRJ): Quincemil / Cuzco PERU / 1–15.XI.1962 / L. Pena. 700m [printed on white label]. [ Holotype in good condition, with cleared and shrunken abdomen glued back on to the thorax and with terminalia preserved in glycerin in a microvial pinned beneath the specimen; sternite 5 missing].

Description. Male ( holotype). Length = 4.0 mm.

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

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

Abdomen. [The abdomen of the only examined specimen had been cleared and is severely altered.]

Terminalia. [Sternite 5 missing.] Cercus almost straight with a rectangular tip in lateral view ( Fig. 8A View FIGURE 8 ). Cercal prongs parallel in dorsal view ( Fig. 8B View FIGURE 8 ). Cercal base with a preapical cluster of long setulae and long and thick setae; cercus covered with many setulae, except on lateral margin ( Figs 8 View FIGURE 8 A–B). Surstylus almost triangular with a truncate apex, with long setae at apex, covered with setulae except on posterior and apical margins ( Fig. 8A View FIGURE 8 ). Pregonite subequal to postgonite, with distal half perpendicular to basal half and with small, spine-like setae on posterior margin ( Fig. 8C View FIGURE 8 ). Postgonite with pointed apex, slightly curved anteriorly, with a long median seta on anterior margin and small, spine-like setae laterally on distal half ( Fig. 8D View FIGURE 8 ). Basiphallus short (about half as long as distiphallus), narrowed distally ( Fig. 8E View FIGURE 8 ). Distiphallus straight, with rounded apex and small cuticular spines laterally ( Fig. 8E View FIGURE 8 ). Lateral margin of distiphallus with a small pointed projection in posterolateral corner and a prominent pointed projection at base ( Fig. 8E View FIGURE 8 ). Vesica angled in lateral view, with rounded apex bearing several tiny and pointed projections. Inner process of vesica elongate ( Fig. 8E View FIGURE 8 ). Lateral and median styli elongate, directed to apical margin of distiphallus ( Fig. 8E View FIGURE 8 ).

Female. Unknown.

Etymology. The species epithet, which should be treated as a noun in apposition, refers to the city of Cuzco in Peru, which is the type locality. Cuzco was the capital of the historical Incan empire.

Distribution. NEOTROPICAL—Peru ( Cuzco).

Remarks. This species shares cercus with a preapical cluster of fine setulae with N. distincta , N. sofiae sp. nov., and N. travassosi Lopes, 1938 . However, it differs from the other species of the genus in having ventral margin of distiphallus mostly rounded, with two pointed projections.