Paramerina vaillanti

Author: Fittkau, 1962

Diagnosis (Material in coll. ZSM; in part after Fittkau, 1962a)
Exuviae 3.5-3.8mm long.
Colour: Exuviae brown; abdomen not lighter than thorax, abdominal segments without markings, uniformly brown except for the posterior margin which intergrades with the hyaline conjunctives. Horn basally brown, distally hyaline but darker round the rim.
Cephalothorax: Thoracic horn 238-270µm long, with rounded basal tubercle; ThR 4.1-4.7. Plastron plate only as wide as, or a little wider than its neck; plate 10x8-15x9µm. Atrium of thoracic horn thin-walled, nearly filling horn lumen, joined to the plastron plate by a short straight neck (025g.jpg). 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. Four lateral taeniae on segment VII. Anterior lateral taenia of segment VII at 0.39-0.43 of length segment VII, weaker than subsequent taenia. Anterior lateral taenia of segment VIII at 0.25-0.32 of length segment VIII.
Anal segment: Anal lobes without a thickened lateral edge, toothed externally only. Anal lobe ratio 3.0-3.4. Lobes with 2 lateral taeniae, insertion of anterior anal taenia at 0.38-0.42 of lobe length. (n=3) The tapering genital sheaths overreaching the anal lobes.

Species keys out at Page 90: Tanypodinae 76 Paramerina of the Text Key.

Afrotropical, north Africa and Middle East (Laville and Reiss, 1992a).
(For more information see module IdentifyIt – file: Other subfamilies).

Ecological notes
Spring outflows into oases; north Africa.
Running water (Harrison, 2000a).