Trichomyia pua Araújo & Bravo sp. nov.

(Figs. 39A –I)

Diagnosis. Basal sclerotized curved expansion on gonocoxite; two pairs of arms of gonocoxites, one triangular with apical setulae and the digitiform ventral with rounded apex and a row of rod-like setae; one pair of subtriangular projection of aedeagal complex; fused apically envolving the aedeagus as a hood; ejaculatory apodeme twice the length of gonostylus; cercus with an apical expansion with two setulae.

Description. Male. Head subcircular in frontal view. Antenna incomplete in the studied specimens; scape subcylindrical; pedicel subspherical; basal flagellomeres pyriform and eccentric; ascoids 2.0 times as long as the length of flagellomere, annulated (Fig. 39A). Palpus three segmented; first segment with sensilla in depressed pit on medial surface; palpus formula 1.0:0.7:0.5 (Fig. 39B). Wing. R2 with base unsclerotized; R4+5 incomplete at base; r-m and m-cu absent (Fig. 39C). Male terminalia: Hypandrium and gonocoxites fused with a basal sclerotized curved expansion. Two pairs of arms of gonocoxites, one digitiform, with rounded apex and a row of rod-like setae (Fig. 39G) and other triangular with an apical bristle, shorter than the dorsal. Gonostylus slightly sclerotized, articulated ventrally to gonocoxite, bare, truncated. Presence of one pair of subtriangular projection of aedeagal complex; fused apically envolving the aedeagus as a hood. One pair of parameres digitiform and projected laterally. Aedeagus bifid with truncated apex (Figs. 39E, 39H). Ejaculatory apodeme twice the length of gonostylus. Epandrium wider than long, pilose. Cercus subtriangulares in lateral view with an apical expansion with two setulae (Fig. 39D). Hypoproct with apical micropilosity. Epiproct subcircular and membranous (Fig. 39F).

Female. Unknown.

Material examined. Brazil, Amazonas, Silves, Saracá, 16.XII.1997, holotype ♂, RF, FLS, LMC leg. (MZFS); 11 paratypes: 2 ♂, same locality, date and colectors as holotype (INPA); 5 ♂, Amazonas, Manacapuru, Cajatuba, Km 69/3, 6.X.1998, without name of collector (MZFS); 1 ♂, Amazonas, Manacapuru, Estrada para Cajatuba, Km 6, 24–29.X.1997, without name of collector (MZFS); 1 ♂, Amazonas, Manacapuru, Cajatuba, Km 69/3, 08.XI.1998, without name of collector (INPA); 1 ♂, Amazonas, Manacapuru, Km 69/3, 20.IV.1998, RQ, RN, PE leg. (MZFS); 1 ♂, Amazonas, Presidente Figueiredo, Pitinga, 15.XIII.1998, RR, LMS cols (MZFS).

Etymology. From Tupi-guarani, puã, spherical, refers to the male terminalia.

Distribution. Brazil—Amazonas.