Robustagramma paralongiseta Cui and Marshall, 2005

Marshall, Stephen A. & Cui, Yongsheng, 2005, Systematics of Robustagramma, a new genus of New World Sphaeroceridae (Diptera), Zootaxa 1026 (1), pp. 1-122 : 25

Robustagramma paralongiseta Cui and Marshall , new species

( Figs. 25–28 )

As described for Robustagramma longiseta except as follows.

Male: General color brownish yellow. Eye height ca. 2.2 times genal height. Halter knob pale. R 2+3 with (left wing) or without (right wing) a vein stump. Length of second costal sector ca. 0.42X length of third. Legs yellowish. Mid femur with 4 anterior bristles on distal third, and two irregular rows of 8 postventral bristles on basal third.

Male abdomen: Yellowish. Posteromedial protuberance of sternite 5 dull, with many small setulae. Apices of cerci slightly tapered in lateral view. Aegeagal apodeme small.

Female: Unknown.

Holotype (♂, DEBU): VENEZUELA: Aragua. Henri Pittier Natl. Pk., Rancho Grande Biol. Sta., v.1998, Ashe, Brooks & Hanley.

Comment: This species is very close to Robustagramma longiseta , differing most obviously in the modifications of male sternite 5. In R. paralongiseta sternite 5 has a dull, setose posteromedial protuberance (shiny or smooth in R. longiseta ).

Figures

FIGURES 25–28. Robustagramma paralongiseta sp. nov.: 25, posterior view of male terminalia; 26, lateral view of male terminalia; 27, lateral view of male internal genitalia; 28, male sternite 5.