Trichomyia incrustabilis 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 : 13-14

Trichomyia incrustabilis Araújo & Bravo sp. nov. ( Figs. 1A–G )

Diagnosis. R4+5 complete at base; hypandrium and gonocoxites fused, forming a large dorsal plate, covering all structures of terminalia; two pairs of sclerotized projections in the aedeagal complex, one directed dorsally and one hook shaped, directed to lateral; ejaculatory apodeme long, twice the length of projections in the aedeagal complex.

Description. Male. Head subcircular in frontal view. Antenna incomplete in the studied specimens; scape subcylindrical; pedicel subspherical; flagellomeres piriform and centric; ascoids the same length of flagellomere ( Fig. 1A ). Palpus four segmented, with the two first segments fused; first and second segment with sensilla in depressed pit on medial surface; palpus formula 1.0:1.6:1.9:2.9 ( Fig. 1B ). Wing. R4+5 complete at base; r-m and mcu absent ( Fig. 1C ). Male terminalia: hypandrium and gonocoxites fused, forming a large dorsal plate, covering all structures of apical terminalia. Gonostylus slightly sclerotized, articulated ventrally to gonocoxite, bare, curved and with pointed apex. Presence of two pairs of hook shaped sclerotized projections in the aedeagal complex; one directed dorsally and the other directed outward. Aedeagus subtriangular ending in the midline of projections in the aedeagal complex. Ejaculatory apodeme long, twice the length of projections in the aedeagal complex ( Figs. 1F, 1E ). Epandrium wider than long, subrectangular ( Fig. 1D ). Cercus curved with many lateral bristles in ventral view ( Fig. 1G ). Hypoproct subtriangular with apical micropilosity ( Fig. 1D ).

Female. Unknown.

Material examined. Brazil, Pará, Santarém, Km 13+2, Ponte de pedras, 18–19.XI,1998, holotype ♂, RF, RDN, FLS leg. ( MZFS). 8 paratypes: 2 ♂, same locality, date and collectors as holotype ( MZFS); 1 ♂, same locality as holotype, BR163, Km 55, IBAMA, 02.XII.1998, RF, RDN, FLS leg. ( INPA); 1 ♂, Pará, Bragança, Vila Buriti, Km14, Sítio Barra Bode, 01.X.1998, without name of collector ( INPA); 4 ♂, Amazonas, Pitinga, 258 Km of Manaus, 16.XII.1997, RQ, RN, PE leg. ( MZFS)

Etymology. The Latin epithet incrustabilis = misterious, refers to the male terminalia, totally covered by a dorsal plate.

Distribution. Brazil—Pará, Amazonas.

Figures

FIGURES 1 A – G. Trichomyia incrustabilis sp. nov. A. Scape, pedicel and basal flagellomeres; B. Palpus; C. Right wing; D. Cerci, epandrium, hypropoct; E. Male terminalia, lateral; F. Male terminalia, dorsal; G. Cercus, in ventral view. (abbreviations: gst = gonostylus, pac = projections in the aedeagal complex).