Author: Kieffer, 1923
Diagnosis
Exuviae 5.0-5.4mm long (n=3).
Cephalothorax: Thoracic horn 238-270µm long (n=3); ThR 3.0, 3.5 (n=2). Plastron plate 80x58, 95x62µm (n=2). Rim 135x82, 162x80µm (n=2); apex of horn atrium at most a little widened; rim less than half the length of the horn (020g.jpg). Thorax granulate anteriorly.
Abdomen: Tergite I with a median mark. Tergite armament of points grouped in short transverse rows (020-2.jpg). Anterior lateral taenia of segment VII at 0.52-0.54 of length segment VII, of segment VIII at 0.32-0.44 of length segment VIII (n=3).
Anal segment: Anal lobes with external edge thickened from posterior lateral taenia to apex, toothed externally (020f.jpg). Anal lobe ratio 3.0-3.3 (n=3). Insertion of anterior anal taenia at 0.32-0.37 of lobe length (n=3).
Species keys out at Page 80: Tanypodinae 66 Trissopelopia of the Text Key.
Distribution
Widespread reports from Europe.
(For more information see module IdentifyIt – file: Other subfamilies).
Ecological notes
Shallow moving cold water.