Tanytarsus dibranchius

Author: Kieffer, 1926

Diagnosis (Material in coll. ZSM)
Cephalothorax: Base of antennal sheath with a minute tubercle, often indiscernible. Thoracic horn more than 500µm long. Wing sheaths rounded apically, pearl row absent.
Abdomen: Spine bands of tergite III situated further back on the tergite and overlap setae D5, bands curved outwards so that if the line of the spine bases is extended posteriorly it cuts the lateral margin of the segment (144c.jpg , 144m.jpg). Tergites IV and V with the armament arranged in longitudinal bands. Armament of tergite IV with more or less equally long spines for the whole length. The postero-lateral corner of segment VIII bears a comb of teeth. Segment VIII with five lateral taeniae.
Anal segment: Anal lobe fringe with less than 35 taeniae; fringe of lobes forming a complete series.
see Lindeberg, 1976a

Species keys out at Page 495: Tanytarsini 136 Tanytarsus of the Text Key.

N+C Europe.
(For more information see module IdentifyIt – file: Chironominae).

Ecological notes