new form
Diagnosis (n=1, leg. J. Moubayed.)
Exuviae 8.0mm long.
Cephalothorax: Cephalic tubercles 480µm long, fused medially to form a large conical projection from the apotome (149a.jpg). Frontal setae 56µm long.
Abdomen: Length hook row II 0.49x width of tergite; 94 hooks in a single row. Tergites II-VI almost covered with small points. Armament of tergite VII medially interrupted. Sternite I without 2 antero-lateral armed humps. Comb of segment VIII a darkened pad covered ventrally with points and with 7/10 marginal teeth. Lateral taeniae V-VIII: 0,0,3,4.
Anal segment: Fringe of anal lobe with about 100 taeniae.
Form keys out at Page 300: Chironomini 197 Polypedilum of the Text Key.
Distribution
France.
(For more information see module IdentifyIt – file: Chironominae).
Ecological notes
A river.