Author: (Meigen, 1830)
Diagnosis
Exuviae 10.0-13.4mm long (m=11.1mm, n=29).
Cephalothorax: Cephalic tubercles conical, 275-300µm high; 1.8-2.6x higher than broad (n=5) (113j.jpg). Frontal setae 40µm long (n=1). Thoracic horn with the anterior branch not much larger than the others. Posterior thoracic mound with a truncate granular posterior swelling; anterior mound short conical.
Abdomen: Hook row II medially interrupted, length of row 0.23-0.31 (0.04-0.08 gap) 0.25-0.30x width tergite (m=0.28 (0.07) 0.28, n=12). Tergites I-V with a complete posterior transverse row or narrow band of strong points; points I-VII: 31-69, 42-57, 19-26, 19-24, 18-23, 22-29, 27-46. Reticulation is fully developed on tergites I-V, partial on VI; reticulation of thick walled ridges (113k.jpg). Posterior transverse point rows present on sternites I-VII; points I-VII: 22/29, 10-18, 22-26, 19-25, 19-26, 13-18, 8-14. Comb of segment VIII absent. Lateral taeniae of segments V-VIII: 4,4,4,5.
Anal segment: Fringe of anal lobe with 89-120 taeniae (n=7). Forked anal processes present (113e.jpg).
(Linked adult male: Langton and Pinder, 2003a)
Species keys out at Page 357: Chironomini 254 Cryptochironomus of the Text Key.
Distribution
Holarctic species: widespread in Europe.
(For more information see module IdentifyIt – file: Chironominae).
Ecological notes
Lakes.