Author: (Serra-Tosio, 1964)
Diagnosis (Material in coll. Serra-Tosio)
Exuviae 4.1-4.4mm long (n=3) (027-1.jpg)
Cephalothorax: Frontal setae absent. Thoracic horn small, brown, triangular (027b.jpg). Thorax dorsally anterior to the level of the thoracic horn strongly rugose. Precorneal setae 1-3: 30, 38; 43, 45; 45, 60µm long (n=2); median antepronotal setae 53, 55µm long (n=2); lateral antepronotal setae 55, 58µm long (n=2); posterior antepronotal setae 50µm long (n=1).
Abdomen: Hook row II absent. Pleura VI-VIII darkened and tightly pleated longitudinally, except for a narrow smooth median band in which the lateral setae are set. Points on the pleura of segment II conspicuously longer than those on the tergite, spinulose.
Anal segment: Anal lobes small, shorter than segment VIII, with three strong, hooked, macrosetae and three additional setae on the inner margin of the anal lobes (027c.jpg).
Species keys out at Page 532: Diamesinae 8 Boreoheptagyia of the Text Key.
Distribution
Central European.
(For more information see module IdentifyIt – file: Other subfamilies).
Ecological notes
Alpine torrents and rivers.