Tanytarsus norvegicus

Author: (Kieffer, 1924)

Diagnosis (n=2)
Exuviae 4.9, 5.0mm long.
Cephalothorax: Thoracic horn broad basally, 350, 455µm long, armed with small spinules or teeth (150r.jpg); ThR 3.5, 4.8. Wing sheaths rounded apically, pearl row absent.
Abdomen: Armament of tergites III and IV without spines. Tergites IV and V with the armament arranged in longitudinal bands. Armament tergite IV strong, 195, 205µm long. ArR 1.04 : 1.0 : 0.8 : 0.34; 1.1 : 1.0 : 0.97 : 0.62. Comb of segment VIII 60µm wide; with 8-10 marginal teeth. Lateral taeniae of segments V-VIII: 0,0,0(1),0(1,2).
Anal segment: Fringe of anal lobe with 29-41 taeniae, forming a complete series.
(Linked adult male: Reiss and Fittkau, 1971a)

Species keys out at Page 437: Tanytarsini 78 Tanytarsus of the Text Key.

Holarctic species: widespread in Europe (not Mediterranean).
(For more information see module IdentifyIt – file: Chironominae).

Ecological notes
Lakes and brackish water in the north. Lakes in the Alps.