Chrysopilus orphnopterus, Santos, Charles Morphy D. & Amorim, Dalton De Souza, 2007

Santos, Charles Morphy D. & Amorim, Dalton De Souza, 2007, Chrysopilus (Diptera: Rhagionidae) from Brazil: redescription of Chrysopilus fascipennis Bromley and description of eleven new species, Zootaxa 1510, pp. 1-33 : 7-9

Chrysopilus orphnopterus sp. n.

Figures 10–14

Material. Holotype ɗ, BRAZIL, State of São Paulo, Ilha dos Búzios, 23º 48’S 45º 09’W, 16/X-4/XI/1963, Exp. Dep. Zool. cols. ( MZSP); 1 ɗ paratype, same as holotype ( MZSP).

Diagnosis. Wing membrane uniformly brownish, darker at distal third; CuA2 and A1 fusing close to margin; yellow stripe on distal portion of abdominal segments 1-5; gonostylus swollen, slightly acuminate distally, with short setae; ejaculatory apodeme long, exceeding base of terminalia.

Male. Body length, 8.8–9.0 mm. Wing length, 5.5 mm. General color yellowish brown. Eyes brown, facets homogenous, ocellar tubercle grayish brown, ocelli red. Gena dark gray. Clypeus yellowish, bare. Antenna golden to brownish yellow; scape with setae, half the length of pedicel; pedicel approximately spherical; first flagellomere suboval, shorter than pedicel ( Figure 11 ). Maxillary palpus long, slightly enlarged ( Figure 12 ). Proboscis and labella yellowish. Occiput gray, with silvery iridescent setae.

Thorax brownish yellow, with golden setae. Halter bare, dark brown stem, and yellow tip. Coxae and femora yellowish, with golden setae; tibiae darker than femora. Wing membrane uniformly brownish, darker at distal third ( Figure 10 ); small pigmented pterostigma; R2+3 reaching C far from R1, not sinuous distally; R4 forking with almost right angle, R4 without short appendage nor distal curvature; CuA2 and A1 fusing close to margin; crossvein m-m not far from origin of M2.

Abdomen brown, yellow stripes distally on tergites 1-5. Gonocoxite and gonostylus brownish yellow; gonocoxite wider than long; gonostylus swollen, slightly acuminate distally, covered with short setae; aedeagus long; ejaculatory apodeme long, exceeding base of terminalia; lateral ejaculatory process parallel; gonocoxal apodeme short ( Figure 13 ); meso-anterior incision of tergite IX absent ( Figure 14 ); cercus golden yellow.

Female. Unknown.

Distribution. This species is presently known only from the type-locality.

Etymology. The species name comes from the Greek words orphnos, for dusky, and pteron, for wing, as a reference to the brownish color of the wing.

Figures

FIGURES 10 – 14. Chrysopilus orphnopterus sp. n., male holotype: 10 — Wing, 11 — Antenna, 12 — Maxillary palpus, 13 — Terminalia, dorsal view, 14 — Terminalia, dorsal view.