Trichomyia spinosa 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 : 70-71

Trichomyia spinosa Araújo & Bravo sp. nov.

( Figs. 43A–F )

Diagnosis. Membranous expansion on gonocoxite, covering the projection of aedeagal complex and aedeagus; arm of gonocoxite pilose with apical spur-like setae directed distally; gonostylus reduced, 0.3 times the length of projection of aedeagal complex; ejaculatory apodeme 3.5 times the length of gonostylus; cercus with a row of rodlike setae.

Description. Male. Head subcircular in frontal view. Antenna incomplete in the studied specimens; scape and pedicel subspherical; flagellomeres pyriform and eccentric ( Fig. 43A ); ascoids lost. Palpus three segmented; first segment with sensilla in depressed pit on medial surface; palpus formula 1.0:0.7:0.7 ( Fig. 43B ). Wing. Bases of R4+5 and r-m unsclerotized, m-cu absent ( Fig. 43C ). Male terminalia: Hypandrium and gonocoxites fused with a membranous expansion, covering projection of aedeagal complex and aedeagus. Arm of gonocoxite pilose and directed to the apex with about three spur-like apical setae. Gonostylus reduzed, 0,3 times the length of projection of aedeagal complex, ovalar, slightly sclerotized, articulated ventrally to gonocoxite. Aedeagal complex with one lanciform pair of sclerotized projections with tips divergent. Aedeagus ending near apex of projections in the aedeagal complex. Parameres fused forming a cuneiform structure ( Fig. 43F ). Ejaculatory apodeme 3.5 times the length of gonostylus. Epandrium pilose, wider than long. Cercus pilose and piriform, with a row of about eight rodlike setae ( Fig. 43D ). Hypoproct with apical micropilosity ( Fig. 43E ).

Female. Unknown.

Material examined. Brazil, Amazonas, Manacapuru, Cajatuba, Km 69/3, 06.. X.1998, holotype ♂, without name of collector ( MZFS); 16 paratypes: 2 ♂, same locality, date and collectors as holotype ( MZFS); 6 ♂, same locality as holotype, 20.IV.1998, RQ, RN, PE leg. ( INPA); 3 ♂, same locality as holotype, 13.X.1998, without name of collector ( MZFS); 2 ♂, same locality as holotype, 21.IV.1998, RQ, RN, PE leg. ( MZFS); 1 ♂, same locality as holotype, Km 75, 25–27.VII.1997, without name of collector ( INPA); 1♂, Pará, Novo Repartimento, Vic. Bandeirante, Ramal dos sem terra, 22.VIII.1998, without name of collector ( MZFS); 1♂, Rondônia, Cacaulândia, 200Km SSE of Porto Velho, 25. V–06.VI. 998 L. W. Quate ( MZFS)

Etymology. From Latim, spinosus = provided with spines, refers to the presence of thick bristles, spines-like, in ventral view of cercus.

Distribution. Brazil—Amazonas, Pará, Rondônia.

Figures

FIGURES 43 A – F. Trichomyia spinosa sp. nov. A. Scape, pedicel and basal flagellomeres; B. Palpus; C. Left wing; D. Cercus, dorsal view; E. Cerci, epandrium and hypropoct; F. Male terminalia, dorsal.