Trichomyia dolichakis Quate, 1996

Araújo, Maíra Xavier & Bravo, Freddy, 2024, A contribution to the knowledge of Trichomyia Haliday in Curtis, 1839 (Diptera, Psychodidae): supplementary characters of five Quate’s species, Papéis Avulsos de Zoologia 64, pp. 1-8 : 3

Trichomyia dolichakis Quate, 1996

( Figs. 2 A-E)

Trichomyia dolichakis Quate, 1996: 12-13 , figs. 4c-f.

Material examined: 1 paratype ♂ ( USNM) and 1 paratype ♂ ( BMNH): Costa Rica, Limon, Puerto Viejo de Talamanca, 20-22.VII.1993, L.W. Quate, leg.

Diagnosis: Wing with Sc sclerotized without microtrichia and r-m. Tergite VII with acuminated lateroapical lobes and a set of joined bristles. Male terminalia with triangular arm of gonocoxite with few bristles,cylindrical gonostylus, bifurcated aedeagus, and a short ejaculatory apodeme.

Supplementary description: Male: Head oval, wid- er than long in frontal view, rounded eyes. Supraocular bristles in a single row. Antennal socket subtriangular, with a short distance between them, almost togeth- er ( Fig. 2A ). Occipital bristles in a row restricted to the posterior margin of the eye. Palpus lost in the both studied specimens. Antenna incomplete in the studied specimens, scape subcylindrical; pedicel subspherical; flagellomeres piriform and asymmetrical; first flagellomere of the same length as the second flagellomere; ascoids filiform, 1.4 times the length of the flagellomere ( Fig. 2B ). Wing: Sc sclerotized without microtrichia; r-m present, radial fork closer to the apex than the apex of the CuA₂ and the medial fork lined with the apex of the CuA₂; R₄ ₊ ₅ complete at the base. Tergite VII with a pair of acuminated lateroapical lobes and a set of joined bristles with curved tip ( Fig. 2E ). Male terminalia: hypandrium fused with gonocoxites. Arm of gonocoxite, triangular, with few bristles randomly distributed and directed to the inner region of the genitalia. Gonostylus cylindrical, little sclerotized, without bristles and with curved apex, articulated with the ventral region of the gonocoxite. Aedeagus bifurcated, one pair of parameres connected by a sheath, ejaculatory apodeme short, 0.6 times the length of parameres ( Figs. 2D, 2E ). Cercus triangular in ventral view with bristles randomly distributed throughout its length. Hypoproct with micropilosity and rounded apex. Epandrium trapezoidal and pilose, with alveoli concentrated on both lateral ( Fig. 2C ).

Figures

Figures 2. Trichomyia dolickakisQuate,1996.(A) Head,ventral view;(B) Scape,pedicel and first flagellomeres;(C) Cercus,epandrium and hypoproct;(D) Aedeagus, gonostylus and parameres;(E) Aedeagus,gonostylus,parameres and tergiteVII.