Pseudochironomus prasinatus

Author: (Staeger, 1839)

Exuviae 6.4-8.5mm long (m=7.7mm, n=53) (126-2.jpg).
Cephalothorax: Frontal setae present. Thoracic horn of a few (about 10) short branches.
Abdomen: Length hook row II 0.46-0.62x width tergite (m=0.56, n=11). Tergites II-VI with obvious anterior transverse bands of points stronger than those of the median patch with which they may be confluent for the tergite width (126f.jpg). Tergite VII with a continuous broad transverse band of small points anteriorly. Sternite I with two hemispherical antero-lateral mounds on each side, the outer always beset with points, the inner occasionally smooth (126e.jpg). Comb of segment VIII with a yellow pad of 7-34 strong teeth. Lateral taeniae of segments V-VIII: 3,4,4,5(4).
Anal segment: Fringe of anal lobe with 53-73 taeniae (m=63, n=17) (126g.jpg).
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 103: Chironominae 2/Pseudochironomini/ Page 297: Chironomini 194 Pseudochironomus of the Text Key.

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

Ecological notes
Northern and montane lakes.