Trichomyia truncata Araújo & Bravo, 2016

Araújo, Maíra Xavier & Bravo, Freddy, 2016, Description of fourty four new species, taxonomic notes and identification key to Neotropical Trichomyia Haliday in Curtis (Diptera: Psychodidae, Trichomyiinae), Zootaxa 4130 (1), pp. 1-76 : 26

Trichomyia truncata Araújo & Bravo sp. nov.

( Figs. 10A–F )

Diagnosis. Hypandrium and gonocoxites fused with dentiform medial expansion with rounded apex; one pair of curved projections in the aedeagal complex, convergent apically; ejaculatory apodeme short, 0.6 times the length of gonostylus; hypoproct with elongated setae in its surface.

Description. Male. Head subcircular in frontal view. Antenna incomplete in the studied specimens; scape and pedicel subspherical; basal flagellomeres pyriform and eccentric; ascoids 1.3 times as long as the length of flagellomere ( Fig. 10A ). Palpus three segmented; first segment with sensilla in depressed pit on medial surface; palpus formula 1.0:0.5:0.7 ( Fig. 10B ). Wing. R4+5 incomplete at base; r-m and m-cu absent ( Fig. 10C ). Male terminalia: Hypandrium and gonocoxites fused with dentiform lateral expansion and with rounded apex ( Figs. 10D, 10F ). Arm of gonocoxite curved with bristles basally and apically. Gonostylus slightly sclerotized, articulated ventrally to gonocoxite, bare, truncated. Presence of one pair of projections in the aedeagal complex curved, convergent apically ( Fig. 10F ). Ejaculatory apodeme short, 0.6 times the length of gonostylus. Epandrium wider than long, expanded medially. Cercus subtriangular. Hypoproct with elongate setae on its surface. Epiproct membranous and subcircular. ( Fig. 10E ).

Female. Unknown.

Material examined. Brazil, Amazonas, Manacapuru, Cajatuba, Km 69/3, 06.X.1998, holotype ♂, without name of collector ( MZFS); 12 paratypes: 4 ♂, same locality as holotype, 9.X.1998, without name of collector ( MZFS); 1 ♂, same locality as holotype, Km 75, 25–27.VII.1997, without name of collector ( INPA); 4 ♂, same locality and date as holotype ( INPA); 1 ♂, same locality as holotype, 20.IV.1998, RQ, RN, PE cols ( MZFS); 2 ♂, Pará, Novo Repartimento, Vic. Bandeirante, Ramal dos sem terra, 22.VIII.1998, without name of collector ( MZFS).

Etymology. The epithet truncata is allusive to format of gonostylus.

Distribution. Brazil—Amazonas, Pará.

Figures

FIGURES 10 A – F. Trichomyia truncata sp. nov. A. Scape, pedicel and basal flagellomeres; B. Palpus; C. Right wing; D. Expancion of gonocoxite; E. Cerci, epandrium and hypropoct; F. Male terminalia, dorsal.