Author: Murray, 1987
Diagnosis (n=4)
Exuviae 6.0-6.6mm long.
Cephalothorax: Thoracic horn 330-404µm long; ThR 1.9-2.4. Plastron plate (150x50-202x112µm), plate length (0.26: aberrant example on one side only; other side normal) 0.43-0.50 of horn length, elongate oval; marginal pores usually distinct in the narrow part of the rim; rim often difficult to distinguish where it gets wider on the opposite side to the pores (015e.jpg). Atrium also vague, widening long before its connection to the plastron plate. Thorax tuberculate to the anterior margin. Anterior thoracic granulation extending as far back as the thorax comb, comb reduced to large rounded or pointed tubercles.
Abdomen: Armament of simple and forked spinules only. Armament of tergite VIII continuous across mid-line. Anterior lateral taenia of segment VII at 0.45-0.54 of length segment VII. Anterior lateral taenia of segment VIII at 0.48-0.53 of length segment VIII.
Anal segment: Anal lobe ratio 1.8-2.2. Insertion of anterior anal taenia at 0.41-0.46 of lobe length (n=4). Stated by Murray (Murray, 1987a) to have spinules on the inner margin of the anal lobes; this is borne out by specimens from Scotland, but the paratype examined has no spinules - perhaps this is a rare condition in this species.
(Linked adult male: Langton and Pinder, 2003a)
Species keys out at Page 65: Tanypodinae 51 Conchapelopia of the Text Key.
Distribution
NW Europe.
(For more information see module IdentifyIt – file: Other subfamilies).
Ecological notes
A small stream and a lake in Fennoscandia; a lake in mid-Scotland and another in northern Scotland.