Cricotopus lygropis

Author: Edwards, 1929

Exuviae 5.4-6.5mm long (n=5) (083-1.jpg).
Cephalothorax: Frontal setae absent. Thoracic horn minute, 40-50µm long, oval, smooth (083b.jpg); ThR 1.8-2.5 (n=4).
Abdomen: Length hook row II 0.40-0.48x width tergite II (n=3). Tergites II-VIII covered with group shagreen forming a reticulate pattern (083c.jpg). Lateral setae of segments II-VII absent.
Anal segment: Anal lobes reduced, transversely wrinkled (083d.jpg). Anal lobe ratio 0.49-0.58 (n=5); fringe absent.
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 893: Orthocladiinae 304 Cricotopus of the Text Key.

W. Europe.
(For more information see module IdentifyIt – file: Orthocladiinae).

Ecological notes
Fast flowing rivers.