Robustagramma parauniseta 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 : 26-27

Robustagramma parauniseta Cui and Marshall , new species

( Figs. 29–32 )

As described for Robustagramma uniseta except as follows.

Male: Body length 1.8 mm. General color pale yellow. Dorsocentral bristles in 2 postsutural pairs in addition to a pair of very strong presutural dorsocentral setulae. Posterodorsal katepisternal bristles 3/4 as long as distance between bristle base and wing base; anterodorsal katepisternal bristle very small. Mid femur with 4 posteroventral bristles on basal half.

Terminalia: Dorsomedial length of epandrium ca. 0.4X length of sternite 8. Sternite 5 with 4 pairs of short, stout bristles and a truncate posteromedial margin. Surstylus similar in length to cercus, 1.5 times as wide as long in lateral view. Ejaculatory apodeme small, 0.25 times length of aedeagal apodeme.

Holotype (♂, DEBU): ECUADOR: Napo. Baeza , 5.iii.1979, S. A. Marshall. Comment: This species differs from Robustagramma uniseta in having a truncate (not convex) posteromedial margin on male sternite 5, and in having a longer surstylus.

Figures

FIGURES 29–32. Robustagramma parauniseta sp. nov.: 29, posterior view of male terminalia; 30, lateral view of male terminalia; 31, lateral view of male internal genitalia; 32, male sternite 5.