Trichomyia spinicauda 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 : 68-69

Trichomyia spinicauda Araújo & Bravo sp. nov.

( Figs. 42A–F )

Diagnosis. R4+5 complete at base; r-m present; hypandrium fused with gonocoxites and with a medial posterior expansion, rounded apically; arm of gonocoxites directed upward with rod-like bristles on inner apex; ejaculatory apodeme 1.6 times the length of gonostylus.

Description. Male. Head subcircular in frontal view. Antenna incomplete in the studied specimens; scape about the same length as the subspherical pedicel; basal flagellomeres pyriform and eccentric; paired ascoids on each flagellomere, C-shaped, 1.3 times the length of flagellomere ( Fig. 42A ). Palpus with three segments; 1st segment with sensilla in depressed pit on medial surface; palpus formula 1.0:0.6:0.6 ( Fig. 42B ). Wing. R4+5 complete at base; r-m present; m-cu absent ( Fig. 42D ). Male terminalia: Hypandrium fused with gonocoxites, with a medial posterior apically rounded expansion ( Fig. 42E ). Arm of gonocoxites directed upward with rod-like bristles in the inner apex and a group of small and thick bristles on the base of arm ( Figs. 42E, 42C ). Gonostylus articulated to gonocoxite at the middle, bare, with apex directed upward. Aedeagal complex with two pairs of projections, the dorsal thinner than the subtriangular ventral projection. Aedeagus bifid ending before the apex of ventral projections in the aedeagal complex ( Fig. 42E ). Ejaculatory apodeme 1.6 times the length of gonostylus. Epandrium pilose, subrectangular ( Fig. 42F ). Cercus pilose with truncated apex in lateral view and a row of few, short and thick bristles ( Figs. 42E, 42F ). Hypoproct with apical micropilosity ( Fig. 42F ).

Female. Unknown.

Material examined. Brazil, Bahia, Coração de Maria municipality, holotype ♂, 14.VIII.2002, F. Bravo leg. ( MZFS); 3 paratypes: 1 ♂, same locality and collector than holotype 18.XII.2003 ( MZFS); 1 ♂ same locality of holotype, 18.XII.2003, I. Castro leg. ( MZFS); 1 ♂ same locality of holotype, 02.XI.2003, I. Castro leg. ( MZFS).

Etymology. From Latim, cauda, meaning tail; extreme part, and spina, spine; thorn referring to the arrangement of bristles at apex of arm of gonocoxite.

Distribution. Brazil—Bahia.

Figures

FIGURES 42 A – F. Trichomyia spinicauda sp. nov. A. Scape, pedicel and basal flagellomeres; B. Palpus; C. Arm of gonocoxite, medially; D. Right wing; E. Male terminalia, dorsal; F. Male terminalia, lateral.