Cryptochironomus albofasciatus

Author: (Staeger, 1839)

Diagnosis (Additional material leg. H. Vallenduuk, E. Morozova, K. Biro.)
Exuviae 7.6-9.9mm long (m=9.1mm, n=9).
Cephalothorax: Cephalic tubercles 160-260µm long (n=7), 3.0-3.3x width (n=3), tubercles strongly hooked apically. Frontal setae 40µm long (n=2). Granulation of antepronotum indistinct (granules 10µm or more), fused to form contorted ridges (149j.jpg). Dorsal anterior thoracic mound absent.
Abdomen: Length hook row II 0.28-0.32 (0.03-0.08 gap) 0.28-0.32x width of tergite (m=0.29 (0.05) 0.31x, n=9). Dorsal posterior points of segments III-VII: 25-52, 34-46, 31-41, 25-42, 18-34 (n=9). Pedes spurii B of segment II absent or small. Lateral taeniae of segments V-VIII: 4,4,4,5.
Anal segment: Fringe of anal lobe with 72-100 taeniae (m=83.9, n=9).
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 354: Chironomini 251 Cryptochironomus of the Text Key.

Widespread in Europe.
(For more information see module IdentifyIt – file: Chironominae).

Ecological notes
Stagnant water.