Nephochaetopteryx utinguensis Tibana & Hime

Nephochaetopteryx utinguensis Tibana & Hime View in CoL

( Fig. 36 View FIGURE 36 )

Nephochaetopteryx utinguensis Tibana & Hime, 1985: 342–345 View in CoL (descriptions of male, female and first instar larva). Type locality: Brazil, Pará, Belém. Other references: Pape (1996: 262; catalog); Mello-Patiu & Santos (2001: 312; redescription of female).

Material examined. Brazil. Acre: Rio Branco , 25.X–8.XI.1991, suspended trap at a height of 1.6 meters, leg. F. Ramos, A. Henriques, I. Gorayeb & N. Bittencourt (1 ♁, MPEG) . Amazonas: Balawa-u [= Barcelos], 01°48’25’’N 63°47’04’’W, 14.IX.1995, Malaise trap, leg. L.S. Aquino (1 ♁, INPA) GoogleMaps ; Mamirauá , várzea [= seasonal floodplain for- est], 3°02’54.4’’S 64°51’02.1’’W, 19–21.IX.1997, Malaise trap, leg. I.S. Gorayeb & O. T. Silveira (4 ♁♁, MPEG) GoogleMaps ; same data but 25–28.IX.1993 (2 ♁♁, MPEG) GoogleMaps ; Marão, Rio Japurá, Ilha Jaraqui [= Jaraqui Island], 25.X.1988, leg. J. Dias (1 ♁, MPEG) . Maranhão: Ribamar Fiquene, Rio Tocantins [= Tocantins River], 05°56’29’’S 47°25’27’’W, 13.XII.2001, suspended trap, leg. J.A. Rafael, F.L. Oliveira & J. Vidal (1 ♁, INPA) GoogleMaps . Pará: Belém, [State Park of] Utinga , VIII.1969, leg. H.S. Lopes (1 ♁, MNRJ) ; same data but APEG (1 ♁, MNRJ) ; Bragança, Mata do Lobão , 14–15.VIII.2008, butterfly trap baited with banana, leg. R. C.O. Santos (4 ♁♁, MPEG) . Rio de Janeiro: Imbaré , X.1967, leg. H. Ebert (1 ♁, MNRJ) . Roraima: Vilhena, Polonoroeste , 17.XII.1986, leg. C. Elias (1 ♁, DZUP) .

Redescription. Male. Length = 4.5–5.0 mm (n = 14).

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

Thorax. Chaetotaxy: dorsocentrals 2+4 (first two weak); intra-alars 2+2; supra-alars 1+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 and sternite 4 brown, with yellowish setulae and with 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 divergents, wider than long, with rounded apex ( Fig. 36E View FIGURE 36 ). Cercus elongate, slightly curved dorsally in lateral view, without setulae on inner lateral margin and with long setae restricted to basal half ( Fig. 36A View FIGURE 36 ). Cercal prongs separated with convergent tips in dorsal view ( Fig. 36B View FIGURE 36 ). Surstylus almost triangular, with rounded apex, with setulae restricted to a wide cluster in basal half ( Fig. 36A View FIGURE 36 ). Pregonite with wide base and distal half perpendicular to base, with anterior margin with granulations and with grooves, posterior margin with a row of setae ( Fig. 36C View FIGURE 36 ). Postgonite shorter than pregonite with pointed apex curved anteriorly, with a long seta and small pointed setae on anterior margin ( Fig. 36D View FIGURE 36 ). Basiphallus as long as distiphallus, curved dorsally ( Fig. 36F View FIGURE 36 ). Distiphallus with dorsal margin convex, with ventral margin bearing two pointed projections ( Fig. 36F View FIGURE 36 ). Vesica strongly angled in lateral view, with a prominent triangular projection in basal half with curved tip covered with microtrichia ( Fig. 36F View FIGURE 36 ). Inner process of vesica longer than wide in lateral view ( Fig. 36F View FIGURE 36 ). Lateral and median styli small, of about one-fourth width as the widest lateral wall of distiphallus, and both inserted at the level of vesica base ( Fig. 36F View FIGURE 36 ).

Female. Terminalia as described by Mello-Patiu & Santos (2001, figs 27–28, 42).

Distribution. NEOTROPICAL—Brazil ( Acre, Amazonas, Maranh„o, Pará, Rio de Janeiro).

Remarks. The holotype and six paratypes deposited in MNRJ were not examined because we had access to many non-type specimens with the diagnostic features of N. utinguensis , including some from the type locality.

This species is similar to N. marianae , from which it differs by the features mentioned in the remarks under that species. It is newly recorded for the Brazilian states of Acre, Amazonas, Maranh„o and Roraima.