Trichomyia (Brachiotrichoyia) ciliata Araújo & Bravo, 2018

Araújo, Maíra Xavier, Bravo, Freddy & Santos, Claudiney Biral dos, 2018, Three new species, four new records, and an updated species key for males of Trichomyia (Brachiotrichomyia) Bravo & Araújo, 2013 (Diptera, Psychodidae), Papéis Avulsos de Zoologia (Pap. Avulsos Zool., S. Paulo) 58, pp. 1-6 : 3-4

Trichomyia (Brachiotrichoyia) ciliata Araújo & Bravo sp. nov. ( Figs. 2 A-G)

Diagnosis: Sensilla in concave pits on segments of the palpi 1 and 2; fourth segment of palpus 1.2 times the length of third segment; CuA₂ ending approximately at the same point as medial fork; ejaculatory apodeme 1.4 times the length of the gonocoxal arm; cercus subrectangular in ventral view; posterior arms of gonocoxite convergent, with feathered bristles along ⅔ apical; gonostylus blade-shaped, straight, pointy apex, approximately the same length of gonocoxal arm.

Description: Male: Head wider than long. Supraocular and occipital bristles arranged in a single row. Antennal socket subtriangular ( Fig.2A ). Palpus with four segments, with the first two proximal, separated by a narrow articular membrane between them; first and second segments of palpus with sensilla in concave pit; fourth segment of palpus 1.2 times the length of third segment; palpus formula 1.0:1.0:1.5:1.3 ( Fig. 2B ). Antenna incomplete in all specimens; scape subcylindrical and pedicel subspherical approximately the same length; flagellomeres piriform, symmetrical, ascoids digitiform longer than flagellomere ( Fig. 2C ). Wing: Sc complete; sc-r present; base of R₄ ₊ ₅ without bristles; r-m absent; medial fork basal to radial fork; CuA₂ ending approximately at the same point as medial fork ( Fig. 2D ). Male terminalia: hypandrium and gonocoxites fused dorsally; posterior arms of gonocoxite digitiform in dorsal and lateral views ( Figs. 2 E-F), convergent, two times the length of gonostylus, apex rounded, with feathered bristles along ⅔ apical; gonostylus bladeshaped, straight, pointy apex, approximately the same length of gonocoxal arm ( Fig. 2F ); epandrium wider than long, hirsute, subrectangular; cercus subrectangular in ventral view, basaly wider than apex; ejaculatory apodeme 1.4 times of gonocoxal arm ( Fig. 2G ); hypoproct short, with dorsal micropilosity; finger-like ( Fig. 2G ).

Material examined: Holotype male, Brazil, Espírito Santo, Cariacica, Reserva Biológica Duas Bocas, 28.viii.2008, dos Santos, C.B. leg. ( MZFS #56215 ); 5 paratypes male, Brazil, Espírito Santo, Cariacica , Roda d’agua, 29.viii.2008, leg. dos Santos, C.B. ( MZFS #56216 , MZFS #56217 , MZFS #56218 , MZFS #56219 , MZFS #56220 ); 3 paratypes male, Brazil, Espírito Santo, Cariacica , Reserva Biológica Duas Bocas , 05.x.2008,leg. dos Santos,C.B. ( MZFS#56221 , MZFS#56222 , MZFS #56223 ); 1 paratype male, Brazil, Espírito Santo, Aracruz , 09-11.i.2008, leg. dos Santos, C.B. ( MZFS #56224 ).

Etymology: Ciliata is derived from the Latin word cilium, meaning “eyelash” in reference to the fringe of hairs on the apex of the gonocoxite’s arm.

Distribution: Known only from the type locality.

Female: Unknown.

Remarks: The new species and T. inermis are morphologically similar by the presence of feathered bristles in the arm of gonocoxite and by the elongated cercus with subparallel lateral margins. They differ by the length of the ejaculatory apodeme, which is long and narrow in T. inermis and short and wide in T. ciliata sp. nov.

Trichomyia (Brachiotrichoyia) recurva

Figures

Figures 2. (A-G) Trichomyia ciliata sp. nov. (A) Head; (B) Palpus; (C) Scape, pedicel, first and second flagellomeres; (D) Right wing; (E) Male terminalia, lateral; (F) Male terminalia,dorsal;(G) Cerci,epandrium,hypoproct.