Tanytarsus mancospinosus

Author: Ekrem and Reiss, 1999

Diagnosis (Type material)
Exuviae 4.5, 5.0mm long (n=2).
Cephalothorax: Cephalic tubercles small conical, 25µm high; frontal setae 90, 100µm long (n=2). Thoracic horn 733, 838µm long, horn with long setulae restricted to the middle half; ThR 11.2, 14.0 (n=2). Horn setae 80, 90µm long (n=2); length 1.1, 1.6x width horn (n=2). Wing sheaths nearly parallel-sided or gently swollen medially, apically rounded; nose usually conspicuous, pearl row absent.
Abdomen: Tergite II with the anterior points stronger than the posterior. Tergite III with strong shagreen anteriorly; spine bands short and situated in front of setae D5, longest spine 73µm long (n=1). Tergites IV and V with the armament arranged in longitudinal bands. Tergite VI without point patches. Armament tergite IV strong, 128, 133µm long (n=2). ArR III-VI 1.4, 1.5 : 1.0 : 0.66, 0.75 : 0 (n=2). Postero-lateral comb of segment VIII 53, 58µm wide; with 8, 11 marginal teeth (n=2). Lateral taeniae of segments V-VIII: 0,0,1,5.
Anal segment: Fringe of anal lobe with 46, 47 taeniae (n=2), forming a complete series.

Species keys out at Page 478: Tanytarsini 119 Tanytarsus of the Text Key.

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

Ecological notes
A montane lake, Germany; Eutrophic lakes in Germany and Denmark.