Parachironomus danicus

Author: Lehmann, 1970

Diagnosis (n=1)
Exuviae 7.0mm long.
Cephalothorax: Cephalic tubercles broader than high 45µm long; length 0.45x breadth (111f.jpg). Thoracic horn much branched. Thoracic granulation moderately strong. Posterior thoracic mound not strongly swollen anteriorly and without a long conical posterior projection.
Abdomen: Tergite armament of Parachironomus-pattern. Length hook row II 0.27x width tergite. Sternite I without toothed humps. Sternite II with the posterior transverse spine band well-developed, but with the anterior band represented at most by points (112e.jpg). Vortex present. Comb of segment VIII of 17/21 brownish spines forming a spiky pad between the bases of the fourth and fifth lateral taeniae (111h.jpg). Lateral taeniae of segments V-VIII: 4,4,4,5.
Anal segment: Anal fringe of 86/89 taeniae.
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 251: Chironomini 148 Parachironomus of the Text Key.

C Europe, Britain.
(For more information see module IdentifyIt – file: Chironominae).

Ecological notes
Ponds, natural and artificial (e.g. a concrete-lined boating pool in England.)