Paratanytarsus tenuis

Author: (Meigen, 1830)

Exuviae 4.2-5.1mm long (n=6).
Cephalothorax: Thoracic horn 215µm long, toothed at base (n=1) (132f.jpg).
Abdomen: Point/spine patches of tergite III broad, situated at the level of the posterior dorsal setae. Antero-median point patches single, broad oval on IV, nearly circular and decreasing in size on successive segments, usually absent on tergite VII (132e.jpg). Antero-median point patch of tergite IV composed of points only. Tergite IV without or with weakly developed lateral spine bands.
Anal segment: Fringe of anal lobe with 60-77 taeniae (n=6).
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 394: Tanytarsini 37 Paratanytarsus of the Text Key.

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

Ecological notes
Northern rivers and lakes.