Form described by Langton, 1991
Diagnosis (n=3)
Exuviae 4.0-4.5mm long.
Cephalothorax: Frontal setae 110-137µm long. Thoracic horn absent. Precorneal setae 1-3: 50-70; 55-75; 100-130µm long.
Abdomen: Hook row II absent. Tergites I and II without apical transverse point bands behind the posterior row of teeth; III-VII(VIII) with the apical transverse point bands separated from the posterior band by a point-free space. Most of the lateral abdominal setae simple. Anterior dorsocentral seta usually simple, rarely bifid. Points of the posterior transverse bands smaller than those of the apical bands.
Anal segment: Anal lobes posterior to three marginal setae with an elongate, broad triangular projection, armed with scales or teeth (028h.jpg).
Form keys out at Page 546: Diamesinae 22 Potthastia of the Text Key.
Distribution
Germany.
(For more information see module IdentifyIt – file: Other subfamilies).
Ecological notes
Rivers.