Cladotanytarsus iucundus

Author: Hirvenoja, 1962

Exuviae 2.9-4.3mm long (n=10), usually very transparent, sometimes a little infuscated.
Cephalothorax: Cephalic tubercles short conical (136i.jpg). Thoracic horn 98-133µm long (n=9), apically narrowed to a point; ThR 4.1-7.6 (n=6). Thoracic horn setae arranged along the length to tip; longest seta 55-85µm long (n=7); 0.47-0.64x length of horn (n=8) (135h.jpg). Pearl row absent.
Abdomen: Tergites II-VI each with an anterior pair of point patches; ArR II-VI 0.53-0.83 : 0.87-1.1 : 1.0 : 0.84-1.0 : 0.76-0.94 (n=6). Armament tergite IV strong, 75-83µm long. Comb in postero-lateral corner of segment VIII, 50-65µm wide; with 6-8 marginal teeth (n=6); with very few dorsal points. Lateral taeniae of segments V-VIII: 3,3,4,5.
Anal segment: Fringe of anal lobe with 24-33 taeniae (n=8).
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 425: Tanytarsini 67 Cladotanytarsus of the Text Key.

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

Ecological notes
Stagnant water.