Opeatocerata zuleideae sp. nov.

(Figs 203–210)

Diagnosis. Tergites 3–6 with paramedian subrectangular black spots (Fig. 203); descendant plate of the anterior cercus with lateroventral expansion in posterior view (Fig. 207); phallus narrow at base, widening towards the apex, with a large dorsal subapical appendix (Fig. 209).

Description. Male (Fig. 203). Head: Face parallel-sided, dark brown with gray pruinescence visible in ventral view, about 6X longer than lower width. Ocellar tubercle protuberant, dark brown with brown pruinescence; ocelli brown. Scape, pedicel and postpedicel yellow with yellow bristles; postpedicel about 2X longer than pedicel; stylus lost. Proboscis yellow, shorter than head height. Thorax yellow, shiny (Fig. 203). Legs yellow, except for hind femur and tibia with brown apical ring and all tarsomeres 4–5 black; hind tibia and tarsus with anterodorsal and posterodorsal rows of longer bristles. Wing hyaline, pterostigma, brown, conspicuous, about 2.8X longer than wide (Fig. 204). Halter yellow. Abdomen yellow, shiny; tergites 3–6 with paramedian subrectangular black spots (Fig. 203); tergite 8 divided in two subrectangular plates; sternite 8 divided in two trapezoidal plates. Terminalia: Anterior cercus with reclinate dorsal projection in lateral view (Fig. 205), subrectangular in dorsal view (Fig. 206); descendant plate with lateroventral expansion in posterior view (Fig. 207). Posterior cercus with rounded apex and a median subtriangular projection in lateral view (Fig. 205); with a dorsal subbasal pointed projection (Fig. 206). Hypoproct subtriangular in lateral view (Fig. 205) and comma-shaped in posterior view (Fig. 207). Epandrial ventral lobe slightly bilobate at apex (Fig. 205); with spiniform bristles apically on ventral lobe and longer bristles mesially on dorsal lobe (Fig. 205). Hypandrium longer than wide, with rounded apex and median sinus (Fig. 210), without long bristles. Phallus narrow at base, widening towards the apex, longer than hypandrium, with a large dorsal subapical appendix (Fig. 209). Subepandrial sclerite wider than long, U-shaped (Fig. 208). Bacilliform sclerite folded and longer than subepandrial sclerite (Fig. 208). Specimen length: 2.5 mm; wing length: 3.4. Female. Unknown.

Geographical distribution. Brazil (Amazonas).

Type material. HOLOTYPE ♂, labelled: Brasil, AM, P[arque] N.[acional] Jaú, Rio Unini, 20–24.vi.1996. 01º43’54’’S; 61º54’32’’W / Suspensa baixa T[erra] firme. Henriques, Vidal & Oliveira (INPA).

Holotype condition. Left postpedicel and both styli lost; notopleurals bristles lost; mid legs and right hind leg lost; apex of the left wing mounted on microslide; abdomen in microtube with glycerin.

Etymology. The specific name is a tribute to Zuleide G. Teixeira, the senior author’s mother, due to her dedication and unconditional love.

Remarks. See in Remarks of O. bare sp. nov. above.