Trichomyia capixaba, Araújo & Dos Santos & Bravo & de Carvalho, 2017

Araújo, Maíra Xavier, Dos Santos, Claudiney Biral, Bravo, Freddy & de Carvalho, Claudio J. B., 2017, Four new species of the genus Trichomyia - subgenus Septemtrichomyia Bravo (Diptera: Psychodidae: Trichomyiinae) from Brazil, Journal of Natural History 51 (29 - 30), pp. 1713-1725 : 1714-1717

Trichomyia capixaba sp. nov.

( Figure 2 (a–j))

Diagnosis

Elongate bristles on tergum VII with straight apices. Gonocoxite arm apically pilose and sclerotised. One pair of parameres; curved and sclerotised, with rounded apex enclosed in a parameral sheath. Ejaculatory apodeme three times the length of parameres.

Description

Adult male. Head subcircular ( Figure 2 (a)). Antenna with 13 flagellomeres; scape longer than pedicel; scape subcylindrical and pedicel subespherical; basal flagellomeres pyriform and eccentric; ascoid 1.6 times the length of flagellomere ( Figure 2 (g)). Thirteenth flagellomere subcylindrical with terminal apiculus separated by a suture ( Figure 2 (c)). Palpus three-segmented; first segment with sensilla in depressed pit on inner side; palpus formula 1.0:0.6:0.9 ( Figure 2 (d)). Wing ( Figure 2 (b)): Sc incomplete, with micropilosity; R4 + 5 incomplete at base; r-m and m-cu absent. Elongate bristles of tergum VII with straight apices ( Figure 2 (j)). Male terminalia: hypandrium fused with gonocoxite. Gonocoxite with posterior arm curved to the midline, apex wide, apically pilose and sclerotised. Gonostylus digitiform and sclerotised with apex curved upward. One pair of parameres present, in dorsal view digitiform, curved and sclerotised, with rounded apex; arrow-shaped in lateral view and enclosed in a parameral sheath. Aedeagus bifid and convergent. Ejaculatory apodeme 3 times the length of parameres. ( Figure 2 (f,h)). Cercus pilose, oval in ventral view, with long bristles in dorsal view ( Figure 2 (e,i)). Hypoproct with truncated apex and apical micropilosity ( Figure 2 (e))

Material examined

Holotype ♂, BRAZIL, Espírito Santo, Santa Teresa, Reserva Biológica Augusto Ruschi , 23 February 2011, G. R. Leite leg. ( MZFS); 3 paratypes: 1 ♂, same locality, date and collector as holotype ( MZFS); 2 ♂, Espírito Santo, Brejetuba (Barra Córrego Santa Rita), 2 October 2010, G. R. Leite leg. ( DZUP).

Distribution

Brazil (Espírito Santo).

Etymology

The specific name capixaba is from the Tupi language and is the common name for people from the state of Espírito Santo.

Remarks

The posterior arms of the gonocoxite of T. capixaba are similar to those of T. sertaneja Araújo & Bravo, 2012 . However in T. capixaba they lack rod-like setae and have a sclerotised apical margin.

Figures

Figure 2. (a–j) Trichomyia capixaba sp. nov. (a) Head; (b) right wing; (c) last flagellomere; (d) palpus; (e) cerci, epandrium, hypoproct; (f) male terminalia, dorsal; (g) scape, pedicel and basal flagellomeres; (h) male terminalia, lateral; (i) cercus, in dorsal view; (j) tergum VII. Abbreviations: aed = aedeagus, agx = arm of gonocoxite, ap = apiculus, cer = cercus, ep = epandrium, gst = gonostylus, hyp = hypoproct, pm = paramere, tgVII = tergum VII.