Chrysopilus microphallus, 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 : 19

Chrysopilus microphallus sp. n.

Figures 52–56

Material. Holotype ɗ, BRAZIL, State of Santa Catarina, Nova Teutônia, 27º 11’ S, 52º 23’ W, 300-500m, XI/ 1970, Fritz Plaumann col. ( MZSP); 1 ɗ paratype, same as holotype ( MZSP).

Diagnosis. Wing longer than wide, membrane light brown, darker distally and along some more basal veins; crossvein m-m close to origin of M2; aedeagus short; ejaculatory apodeme long, exceeding base of terminalia, lateral ejaculatory process wide, projected obliquely; gonostylus distally acuminate; abdomen brown with yellow distal stripes on each segment and golden setae.

Male. Body length, 11.0–12.0 mm. Wing length, 9.6–10.0 mm. General color yellowish brown. Eyes black, facets homogenous, ocellar tubercle dark gray, ocelli yellowish. Gena and clypeus brownish to gray, clypeus bare. Antenna yellowish to brown, first flagellomere and arista darker; scape bare, wider than pedicel; pedicel suboval; first flagellomere approximately cubic, shorter than pedicel ( Figure 53 ). Maxillary palpus long, slender ( Figure 54 ). Proboscis and labella yellowish. Occiput gray, with golden setae.

Thorax bright yellow, with dark setae. Halter bare, stem dark brown, tip yellow. Legs yellowish, tibiae darker than coxae and femora. Wing longer than wide, membrane light brown, darker distally and along some more basal veins ( Figure 52 ); pterostigma pigmented, elongated, reaching C; R2+3 reaching C close to R1 (R1- R2+3 distance smaller than r-m), without distal sinuosity; R4 forking obliquely, without short appendage, strongly curved towards anterior margin close to apex; CuA2 and A1 fusing far from margin; basal sector of M2 (prior to the origin of m-m) very short, as long as r-m.

Abdomen brown with yellow bands distally on tergites of each segment, and golden setae. Gonocoxite and gonostylus brownish yellow; gonocoxite as wide as long; gonostylus distally acuminate, covered with setae; aedeagus short; ejaculatory apodeme long, exceeding base of terminalia; lateral ejaculatory process wide, projected obliquely ( Figure 55 ); meso-anterior incision of tergite IX deep ( Figure 56 ); cercus brown.

Female. Unknown.

Distribution. The known distribution of this species is restricted to the type-locality.

Etymology. The species name comes from the fusion of the Greek words micros, for little, and phallos, male copulatory organ, regarding the short aedeagus, in comparison to the other male terminalia structures.

Figures

FIGURES 52 – 56. Chrysopilus microphallus sp. n., male holotype: 52 — Wing, 53 — Antenna, 54 — Maxillary palpus, 55 — Terminalia, dorsal view, 56 — Terminalia, dorsal view.