Demicryptochironomus neglectus

Author: Reiss, 1988

Diagnosis (n=1)
Exuviae 5.6mm long.
Cephalothorax: Cephalic tubercles 35µm long, 45µm broad, tubercles less swollen at base. Frontal setae 25µm long. Thoracic horn much branched.
Abdomen: Hook row II entire, length of row 0.45x width tergite. Tergite II posteriorly with a transverse band of points medially broken by a narrow point-free space (097i.jpg). Tergites III-V with the longitudinal patches more extensive, but always separate posteriorly. Tergites IV-VI with antero-median point patches, patches at most narrowly joined to the posterior patches. Posterior points of tergites II and III large, crowded and dark, producing obvious transverse brown bands on the exuviae. Pedes spurii B of segment II present. Comb of segment VIII with four teeth. Lateral taeniae of segments V-VIII: 4,4,4,5.
Anal segment: Fringe of anal lobe with 47/51 taeniae.
(Linked adult male: Reiss, 1988a)

Note: This form and the form Demicryptochironomus pe2 are very similar, the differences being of degree and slight. They are also based on one and two specimens respectively. On present material it seems more likely that they belong to the same species, despite their geographical origin.

Species keys out at Page 132: Chironomini 29 Demicryptochironomus of the Text Key.

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

Ecological notes