Paramerina divisa

Author: (Walker, 1856)

Exuviae 3.8-3.9mm long (n=3).
Cephalothorax: Plastron plate small, 20x20-25x25µm, rim maximum diameter 70-90µm. Thoracic horn 4.0-5.1x as long as broad (023d.jpg). Thoracic horn basal tubercle rounded. Atrium of thoracic horn thin-walled, joined to the plastron plate by a short straight neck. Thorax granulate. Thorax comb well-developed, composed of strong, more or less parallel-sided teeth.
Abdomen: Tergite I with a median mark. Segment VII transversely rectangular. Three lateral taeniae on segment VII (023e.jpg).
Anal segment: Anal lobes without a thickened lateral edge. Anal lobes toothed externally only. Anal lobes 2.8-3.0x as long as broad. Insertion of anterior anal lobe taenia at 0.31-0.34 of lobe length. (023e.jpg)
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 88: Tanypodinae 74 Paramerina of the Text Key.

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

Ecological notes
Streams and rivers.