Cladotanytarsus pe7

new form

Exuviae 3.4-3.9mm long (n=5); usually very transparent, sometimes a little infuscated.
Cephalothorax: Frontal apotome in the region of the cephalic tubercles usually distinctly granulate. Cephalic tubercles short conical. Frontal setae 74-90µm long (n=4). Precorneal setae taeniate, inserted on a conspicuous swelling. Antennal sheath base with a very small projection. Thoracic horn 120-200µm long (n=5); ThR 2.7-3.7 (n=4). Thoracic horn setae distributed more generally, not restricted to one edge (149g.jpg); setae 50-64µm long (n=5), longest setae 0.25-0.53x as long as horn (n=5). Pearl row absent.
Abdomen: Tergites II-VI each with an anterior pair of point patches; ArR II-VI 0.37-0.0.79 : 0.78-1.0 : 1.0 : 0.77-0.93 : 0.1-0.68 (n=5). Armament tergite IV 56-80µm long (n=5). Comb on postero-lateral corner of segment VIII 50-68µm wide (n=5); with 8-11 marginal teeth (n=5) and very few dorsal points. Lateral taeniae of segments V-VIII: 3,3,4,5.
Anal segment: Fringe of anal lobe with 29-36 taeniae (n=5).

Form keys out at Page 420: Tanytarsini 62 Cladotanytarsus of the Text Key.

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

Ecological notes