Parapsectra nana

Author: (Meigen, 1818)

Diagnosis (n=2 unless stated otherwise)
Exuviae 2.8, 3.4mm long (136-2.jpg).
Cephalothorax: Cephalic tubercles rounded mounds; frontal setae 53, 80µm long. Antennal sheath base without swelling. Thoracic horn elongate, 275, 420µm long, gradually narrowed to tip, with apical half setulated, seta 25, 50µm long (136m.jpg); ThR 15.3, 21. Thoracic horn. Posterior thoracic mounds moderately swollen. Pearl row absent.
Abdomen: Length hook row II 0.48x width tergite; hooks 99 (n=1). Tergites III-VI with a pair of transverse, slightly oblique anterior point patches, frequently grading into spines laterally and posteriorly (136n.jpg). (In Micropsectra attenuata the transverse point patches are only weakly developed.) Tergites VII and VIII extensively covered with small points. Pedes spurii B of tergite II absent. Comb of segment VIII 28, 33µm wide, on the postero-lateral corner of the segment; with 4/5 marginal teeth (136o.jpg). Lateral taeniae of segments V-VIII: 3,4,4,4.
Anal segment: Fringe of anal lobe with 22-23 taeniae (136o.jpg).
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 498: Tanytarsini 139 Parapsectra of the Text Key.

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

Ecological notes
Montane burns.