Author: Wülker, 1956
Diagnosis
Exuviae 3.4-5.4mm long (m=4.8mm, n=9).
Cephalothorax: Frontal setae present. ThR 200-400µm long (m=326µm, n=7), small-toothed; ThR 6.1-9.1 (n=3).
Abdomen: Tergites III-VIII with restricted shagreen, at least on VII and VIII. Median point patches on tergites III-VI; patches single, at least on tergites IV and V obviously so; occasionally constricted medially on VI. Points of point patches large, the longest greater than 35µm long, usually obviously exceeding the length of the longest tooth of the posterior transverse rows, OR the anal lobes drawn out posteriorly into a toothed point. Three or four lateral setae on segments II-VI, not taeniate; four lateral taeniae or setae present on segment VI; if (rarely) all are reduced to setae, the most posterior is the most conspicuous. At least one lateral seta on segment VII, and all those on segment VIII taeniate.
Anal segment: Anal lobe ratio 1.6-2.0 (m=1.8, n=8). Anal lobes rounded apically, without teeth. Fringe of anal lobe with 21-40 taeniae (m=28.8, n=9); three anal macrosetae situated apically on the anal lobes.
(Linked adult male: Langton and Pinder, 2003a)
Species keys out at Page 677: Orthocladiinae 89 Psectrocladius of the Text Key.
Distribution
Widespread (W) Europe.
(For more information see module IdentifyIt – file: Orthocladiinae).
Ecological notes
Flowing and stagnant water.