Form described by Langton, 1991
Diagnosis
Exuviae 2.8-4.1mm long (n=6).
Cephalothorax: Thoracic horn absent.
Abdomen: Tergites without anterior transverse tooth rows indicated even by shagreen (067e.jpg). Tergites II-VIII covered with strong points and a posterior transverse row or narrow band of strong points.
Anal segment: Anal lobe ratio 1.7-2.0 (n=4). Anal lobes not drawn out into a point, each lobe folded upwards, crest on elevated margin absent or weak: a few specimens have some small points along the edge of the anal lobe. Anal lobes without fringe; only two spine-like anal macrosetae (067f.jpg), 78-100µm long, length 0.36-0.49x length of the anal lobe (n=6).
Form keys out at Page 814: Orthocladiinae 226 Pseudorthocladius of the Text Key.
Distribution
(For more information see module IdentifyIt – file: Orthocladiinae).
Ecological notes
Streams and a lake: Scotland.