Author: Schlee, 1968
Diagnosis
Exuviae 1.9-2.5mm long (m=2.3mm, n=8).
Cephalothorax: Frontal apotome at most with rounded granules, usually more or less smooth. Frontal setae (narrow taeniate or) setaceous. Dorsocentral setae all setaceous. Pearl row present.
Abdomen: Small points covering tergites IV-VII much smaller medially than just in front of the posterior transverse row of strong points (037g.jpg). Setae of tergites and sternites at most narrow taeniate, 2µm wide. Posterior transverse row of strong points of segments IV-VII present only on the tergites, absent on the sternites. Sternite II without long spinules (but may be armed with much smaller spinules (less than 10µm long), in which case sternite I is unarmed).
Anal segment: Anal lobe ratio 1.5-1.7 (m=1.6, n=7). Fringe of anal lobe with 32+1 to 40+1 taeniae (m=37+1, n=8). Apical setae of anal lobes taeniate, anterior apical seta at taeniae 12-27 (m=16, n=8).
(Linked adult male: Langton and Pinder, 2003a)
Species keys out at Page 613: Orthocladiinae 25 Corynoneura of the Text Key.
Distribution
Holarctic species: widespread in (northwest) Europe.
(For more information see module IdentifyIt – file: Orthocladiinae).
Ecological notes
Cold springs and streams; a gravel pit.