Brasura sinistra sp. nov.

(Figs 1, 3, 5, 13–21)

Description. Measurements. Male body length 9.54 mm; head width 2.47 mm; crown length×width 0.78× 0.94 mm; eye width 0.87 mm; frontoclypeus length 1.89 mm; clypellus length 1.13 mm; pronotum length×width 1.00× 2.90 mm; mesonotum+scutellum length 1.76 mm. Female unknown.

Crown light brown with pair of slightly darker maculae mesad of posteromedial eye corners (Fig. 1). Pronotum piceous with dense light brown granules (Fig. 1). Forewings piceous with light brown spots along veins, central area with numerous tiny pale spots (Figs 1, 5). Crown, pronotum and mesonotum midline ratio about 1:1.28:2.26.

Male genitalia. Pygofer in lateral view with caudoventral digitiform process short, caudodorsal margin with small, broad lobe (Fig. 14). Segment X broad, lateral margins slightly conveX (Fig. 13). Aedeagus slender, slightly swollen at base and apeX, constricted medially; shaft with numerous short spines basally in ventral and lateral view (Figs 15, 17); apical third with elongate, distally trifurcate retrorse lobe on left side, and 2 small setiform spines on right side (Fig. 16); apeX with 2 short spines on each side; gonopore subbasal, among group of ventral spines (Fig. 15). Dorsal connective narrow and straight in lateral view (Fig. 17), broad in dorsal view (Fig. 20). Style short, tapered distally (Fig. 18). Connective triangular basally, with anterior arm long and rolled apically (Fig. 19). Subgenital plate slender, inner margin straight, outer margin conveX medially, apeX rounded with fine setae (Fig. 21).

Material examined. Holotype male, Republic of the Congo: Department Pool, Lesio-Loun Wildlife Reserve, 3°16.196′S 15°28.287′E, 340m, 27 Oct. 2008, coll. M. Braet and M. Sharkey.

Etymology. The new species name is a Latin word, meaning “left”, referring to the spine eXtended from the left side of the aedeagal shaft.

Remarks. This species is close to B. torquea Nielson and B. evaginata Nielson, but can be easily distinguished by aedeagus with elongate subapical process, 2 subapical spines at one side and 4 spines apically on the shaft, the latter two species with subapical process broad and short, seta-like spines numerous or absent at distal 2/3 of shaft, without apical spines.