Nephochaetopteryx matinta, 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 : 44

Nephochaetopteryx matinta sp. nov.

( Fig. 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 ). 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 ). Cercal prongs with convergent rectangular apex in dorsal view ( Fig. 19B ). Surstylus elongate, tapering distally, with pointed apex curved posteriorly, with setulae restricted to basal margin ( Fig. 19A ). Pregonite claw-shaped, curved anteriorly, bearing small, pointed setulae on posterior margin ( Fig. 19C ). Postgonite shorter than pregonite, with pointed apex curved anteriorly, anterior margin bearing a long seta and small pointed setae ( Fig. 19D ). Basiphallus elongate, about half as long as distiphallus ( Fig. 19F ). Distiphallus L-shaped, with rounded apical margin ( Fig. 19F ). Ventral margin of distiphallus with a small, pointed projection and with serrated margin ( Fig. 19F ). Vesica strongly angled, with a basal triangular projection and with pointed apex strongly curved in lateral view ( Fig. 19F ). Inner process of vesica elongate and curved posteriorly ( Fig. 19F ). 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 ).

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 .

Figures

FIGURE 19. Nephochaetopteryx matinta sp. nov., male terminalia.Paratype specimen from Manaus,Amazonas, Brazil (INPA). A. Epandrium, surstylus and cercus, left lateral view; arrow showing preapical protuberance on dorsal margin of cercus. B. Cerci, dorsal view (setation omitted on the right side). C. Pregonite, lateral view. D. Postgonite, lateral view. E. Sternite 5, ventral view (setation omitted on the right side). F. Phallus, lateral view. Abbreviations: bp = basiphallus; dp = distiphallus; ip = inner process of vesica; ls = lateral stylus; ms = median stylus; ve = vesica. Scale bars: A, B, E = 0.1 mm; C, D, F = 0.05 mm.