Krenopelopia binotata

Author: (Wiedemann, 1817)

Diagnosis (n=1, in part after Fittkau, 1962a)
Exuviae 3.5mm long.
Cephalothorax: Thoracic horn 330µm long; ThR 3.3. Thoracic horn with plastron plate occupying the whole of its apex, without rim. Plastron plate 100x100µm.
Abdomen: Abdomen dorsally less densely and completely armed: e.g. paratergites much less densely armed than the parasternites; the points on the paratergites smaller than those on the parasternites. Segments V and VI without lateral taeniae; segment VII with three lateral taeniae, grouped central on segment, widened at base, distally tapering; length 2/3 of segment. Segment VIII with 5 strong lateral taeniae, evenly spaced, twice as long as segment; anterior taenia near centre of segment.
Anal segment: Each anal lobe about 1.7x as long as broad, its apex smooth, bluntly pointed and curved outwards, with a conspicuous tubercle on its inner edge (018d.jpg). Lobes with 2 strong lateral taeniae, similar to VIII; posterior taenia at middle of lobe length.
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 74: Tanypodinae 60 Krenopelopia of the Text Key.

Widespread in Europe and circum-Mediterranean.
(For more information see module IdentifyIt – file: Other subfamilies).

Ecological notes
Cold springs and spring streams.