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

Nephochaetopteryx matinta View in CoL sp. nov.

( Fig. 19 View FIGURE 19 )

Type material. HOLOTYPE ♁ ( MPEG): Brasil Pará Tucuruí / Rio Tocantins / SAUDE / 5 a 7–VI–1984 [printed and handwritten on rectangular white label] // Armadilha / 7 m / Suspensa [= suspended trap at height of 7 meters] [printed and handwritten on rectangular white label]. [ Holotype in good condition, lacking left mid leg and fore legs.]

PARATYPES (2). ♁ ( INPA) : BRASIL: Amazonas / 26 Km NE Manaus / Reserva Ducke [= Ducke Reserve] / 27.X.1988 [printed on rectangular white] // J.A. Rafael / Arm. Suspensa / 1,5 metros [= suspended trap at height of 1.5 meters] [printed on rectangular white label] [ paratype in good condition, lacking left mid leg and left fore leg, with terminalia and last segments of abdomen cleared and preserved in glycerin in a microvial pinned beneath the specimen]. ♁ ( INPA) : BRASIL Roraima / Rio Uraricoera / Ilha de Maracá [= Maracá Island] / 02–13. V .1987 [printed on rectangular white label] // J.A. Rafael / J.E. R . Brasil / L.S. Aquino [printed on rectangular white label] // Armadilha / Suspensa [= suspended trap] [printed on rectangular white label] [ paratype with thorax partly damaged and terminal portion of abdomen cleared and preserved in glycerin in a microvial pinned beneath the specimen] .

Description. Male. Length = 5.0 mm (n = 3).

Head. Fronto-orbital, parafacial plates and postocular strip with golden microtomentum. Frontal vitta black. Six frontal setae. Gena and postgena with golden microtomentum. Palpus yellow.

Thorax. Chaetotaxy: dorsocentrals 2+4 (first two weak); intra-alars 2+3; supra-alars 2+3, notopleurals 1 subprimary; anepisternals 5; merals 5. Ctenidium consisting of four spines. Mid femur with two median setae and with a differentiated posteroventral seta. Wing hyaline; vein R 4+5 setulose dorsally to crossvein r-m.

Abdomen. Tergites brown with a band of grayish microtomentum on anterior 4/5 of dorsal and lateral surfaces. Sternites 2 and 3 orange with a median brown strip on posterior margin; sternite 4 brown, with yellowish setulae and marginal setae.

Terminalia. Sternite 5 brown, with long and short slender setae; cleft shallow, not passing the anterior margin of lobe; lobe rounded and with a tuft of short setulae; arms divergent and glossiform ( Fig. 19E View FIGURE 19 ). Cercus sinuous, short- er than epandrium, without setulae on cercal prong, with a small preapical protuberance on dorsal surface and with tip strongly curved posteriorly in lateral view ( Fig. 19A View FIGURE 19 ). Cercal prongs with convergent rectangular apex in dorsal view ( Fig. 19B View FIGURE 19 ). Surstylus elongate, tapering distally, with pointed apex curved posteriorly, with setulae restricted to basal margin ( Fig. 19A View FIGURE 19 ). Pregonite claw-shaped, curved anteriorly, bearing small, pointed setulae on posterior margin ( Fig. 19C View FIGURE 19 ). Postgonite shorter than pregonite, with pointed apex curved anteriorly, anterior margin bearing a long seta and small pointed setae ( Fig. 19D View FIGURE 19 ). Basiphallus elongate, about half as long as distiphallus ( Fig. 19F View FIGURE 19 ). Distiphallus L-shaped, with rounded apical margin ( Fig. 19F View FIGURE 19 ). Ventral margin of distiphallus with a small, pointed projection and with serrated margin ( Fig. 19F View FIGURE 19 ). Vesica strongly angled, with a basal triangular projection and with pointed apex strongly curved in lateral view ( Fig. 19F View FIGURE 19 ). Inner process of vesica elongate and curved posteriorly ( Fig. 19F View FIGURE 19 ). Lateral and median styli short, of about one-fourth width as the widest portion of lateral wall of distiphallus, and both inserted medially in distiphallus ( Fig. 19F View FIGURE 19 ).

Female. Unknown.

Etymology. The specific name, which should be treated as a noun in apposition, is derived from the name “Matinta Pereira”, who in the Brazilian folklore is a witch dwelling in the Amazon forest.

Distribution. NEOTROPICAL—Brazil ( Amazonas, Pará, Roraima).

Remarks. This species differs from the others in having surstylus with distal portion pointed and strongly curved posteriorly. The cercus of this species resembles that of N. panamensis .