Trichomyia longiseta Araújo & Bravo sp. nov.

(Figs. 30A–F)

Diagnosis. Triangular projection on gonocoxite, covering apex of projections in the aedeagal complex; arm of gonocoxite curved with a spur-like bristle apically; ejaculatory apodeme short, 0.7 times the length of gonostylus. Description. Male. Head subcircular in frontal view. Antenna with 13 flagellomeres; scape and pedicel subspherical; basal flagellomeres pyriform and centric; ascoids 1.2 times as long as the length of flagellomere (Fig. 30A); 13th flagellomere subcylindrical with terminal apiculus separated by a suture (Fig. 30C). Palpus three segmented; first segment with sensilla in depressed pit on medial surface; palpus formula 1.0:0.5:0.5 (Fig. 30B). Wing. R4+5 with base unsclerotized; r-m unsclerotized and m-cu absent (Fig. 30D). Male terminalia: Hypandrium and gonocoxites fused with a triangular projection, covering apex of projections in the aedeagal complex. Arm of gonocoxite pilose, curved, with a spur-like apical bristle and thinner bristles of the same length basally. Gonostylus slightly sclerotized, articulated ventrally to gonocoxite, bare, curved and digitiform. Aedeagal complex with one pair of subcircular fused projections, and with a pilose structure at apex. Aedeagus bifid ending at medial region of projections in the aedeagal complex (Fig. 30F). Ejaculatory apodeme short, 0.7 times the length of gonostylus. Epandrium wider than long. Cercus pilose. Hypoproct with apical micropilosity (Fig. 30E).

Female. Unknown.

Material examined. Brazil, Amazonas, Manacapuru, Cajatuba, Km 69/3, 12.X.1998, holotype ♂, without name of collector (MZFS); 8 paratypes: 1 ♂, same locality as holotype, 06.X.1998, without name of collector (MZFS); 1 ♂, same locality as holotype, 12.X.1998, without name of collector (INPA); 1 ♂, same locality as holotype, 20.IV.1998, RQ, RN, PE leg. (INPA); 3 ♂, Amazonas, Manacapuru, Km75, 25–27.VII.1997, without name of collector (MZFS); 1 ♂, Amazonas, Manaus, Reserve Ducke, 26–31.VIII.2011, M.X. Araújo leg. (INPA); 1 ♂, Amazonas, BR307, Km 12, 15.VIII.2010, without name of collector (INPA).

Etymology. The epithet longiseta refers to the largest and thickest bristle in the arm of gonocoxite apically. Distribution. Brazil—Amazonas.