Phaenopsectra flavipes

Author: (Meigen, 1818)

Exuviae 5.2-7.0mm long (m=5.8mm, n=22) (120-2.jpg).
Cephalothorax: Cephalic tubercles more or less cylindrical, truncate and capped with fine spinules (120f.jpg); tubercles usually less than 50µm long; apex 50-80µm broad (n=4). Frontal setae 40µm long (n=1). Thoracic horn with 6-10 branches. Thorax with a short patch of conspicuously large granules near suture, which may be extended along the suture as a narrow band (112b.jpg).
Abdomen: Length hook row II 0.47-0.58x width tergite (n=9); hooks 52-70 (m=57.6, n=10). 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 (120g.jpg). The point patch of tergite VI is reduced to a median longitudinal band (though there may be a small patch of points laterally) (120h.jpg). Tergites III and IV with an apical band of points. Conjunctives with a black mark laterally. Pedes spurii B of segment II present. Vortex present. Lateral taeniae of segments V-VIII: 3,3,4,4.
Anal segment: Fringe of anal lobe with 21-41 taeniae (m=31.2, n=42) (120i.jpg).
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 293: Chironomini 190 Phaenopsectra of the Text Key.

Holarctic species: widespread in Europe.
(For more information see module IdentifyIt – file: Chironominae).

Ecological notes
Stagnant and running water.