Tanytarsus brundini

Author: Lindeberg, 1963

Exuviae 2.6-4.2mm long (m=3.5mm, n=16) (143-2.jpg).
Cephalothorax: Cephalic tubercles shallow mounds. Frontal setae 85-160µm long (n=5). Antennal sheath base with a large conical projection. Thoracic horn apex densely covered with short setulae (143l.jpg). Thoracic horn 550-730µm long (m=673µm, n=20); ThR 9.4-14.6 (m=11.8, n=16). Posterior thoracic mound weak. IF thoracic horn less than ten times as long as broad, it is smooth or bears long setae, as long as the horn is broad. Wing sheaths rounded apically, pearl row absent.
Abdomen: Length hook row II 0.30-0.35x width tergite (n=4); hooks 75-103 (n=5). Tergite II without an anterior pair of point patches; III with points only; IV and V with the armament arranged in longitudinal bands. ArR III-VI 0.9-1.14 : 1.0 : 0.8-1.09 : 0.57-0.90 (n=15) (143m.jpg). Armament tergite IV strong, 60-111µm long (m=86.8µm, n=15). Postero-lateral comb of segment VIII 20-43µm wide (m=30.1µm, n=14); with 4-7 marginal teeth (m=5.5, n=16). Lateral taeniae of segments V-VIII: 0(1),1(2),3(2,4),5.
Anal segment: Anal lobe ratio 1.45-1.70 (n=4). Fringe of anal lobe with 23-35 taeniae (m=28.8, n=16), forming a complete series (143n.jpg).
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 473: Tanytarsini 114 Tanytarsus of the Text Key.

Holarctic species: widespread in Europe, north Africa.
(For more information see module IdentifyIt – file: Chironominae).

Ecological notes
Northern and montane lakes; streams in the south.