Procladius near-vesus

Procladius (Holotanypus) near vesus Roback
Form described by Langton, 1991

Diagnosis (n=8)
Exuviae 6.1-7.1mm long (005-1.jpg).
Cephalothorax: Thoracic horn 495-590µm long; ThR 2.5-3.1. Breadth respiratory atrium : breadth horn = 0.82-0.95:1. Plastron plate much narrower in diameter than the maximum breadth of the horn (005b.jpg). Breadth plastron plate : breadth horn = 0.24-0.33:1.
Abdomen: Segments I-VI with a single long lateral taenia on each side (005-1.jpg). Anterior lateral taenia of segment VII at 0.15-0.24 of length segment VII.
Anal segment: Anal lobes tapering to a point, armed externally with strong saw-like teeth (005e.jpg). Anal lobe ratio 1.6-1.9. Insertion of anterior anal taenia at 0.25-0.28 of lobe length.

Species keys out at Page 19: Tanypodinae 5 Procladius of the Text Key.

Great Britain.
(For more information see module IdentifyIt – file: Other subfamilies).

Ecological notes
Loch Lomond and Loch of Strathbeg, Scotland.