Virgatanytarsus pe2

Form described by Langton, 1991

Exuviae 3.2-3.9mm long (n=6).
Cephalothorax: Thoracic horn 325-395µm long (n=3); ThR 13.0, 15.8 (n=2). Pearl row absent.
Abdomen: Point bands of tergite IV armed with spines internally (137c.jpg); tergite III similarly armed but with fewer and shorter spines. Longest spine III 75-90; IV 60-75µm long (n=5). Tergites IV and V with the armament arranged in longitudinal bands. Comb of segment VIII 43-70µm wide, the posterior edge very straight; with 10-16 small marginal teeth (n=5) (137d.jpg). Segment VII with all lateral setae bristle-like; VIII with three lateral taeniae.
Anal segment: Fringe of anal lobes with 32-42 taeniae (n=6).

Form keys out at Page 429: Tanytarsini 71 Virgatanytarsus of the Text Key.

(For more information see module IdentifyIt – file: Chironominae).

Ecological notes
Rivers in Tunisia.