Author: (Pagast, 1935)
Diagnosis (Material in coll. ZSM)
Exuviae 3.8-4.7mm long (m=4.3mm, n=10).
Cephalothorax: Frontal setae 115-160µm long (m=133µm, n=7). Thoracic horn small-toothed, 270-390µm long (m=356µm, n=9); ThR 3.6-7.3 (m=4.4, n=9). Dorsal antepronotal setae shorter than 250µm; median antepronotal setae similar in size.
Abdomen: Tergites II/III-VIII extensively shagreened; without a median transverse row of strong points. Tergites II/III-V(VI) with a swelling posteriorly covered with strong points. Pedes spurii B of segment II absent. Pedes spurii A present on segments IV-VI. Embedded spines in postero-lateral corners of segments VII and VIII only (043a.jpg). Three or four lateral setae on segments II-VI; segment VII with 4 lateral taeniae, all lateral setae on segment VIII taeniate.
Anal segment: Anal lobe ratio 1.9-2.2 (n=10). Anal lobes less than 1.25x as long as segment VIII. Fringe of anal lobe with 23-36 taeniae (m=30, n=9). Anal macrosetae weakly hooked, hardly recurrent (043a.jpg).
Species keys out at Page 654: Orthocladiinae 66 Zalutschia of the Text Key.
Distribution
Holarctic species: N+C Europe.
(For more information see module IdentifyIt – file: Orthocladiinae).
Ecological notes
Northern and montane pools standing waters.