Psectrocladius platypus

Author: (Edwards, 1929)

Exuviae 5.3-6.3mm long (m=5.8mm, n=9) (047-1.jpg).
Cephalothorax: Thoracic horn 370-410µm long (m=384µm, n=8), small-toothed (047b.jpg); ThR 7.4-9.0 (m=8.2, n=7).
Abdomen: Tergites III-VI with nearly circular median point patches, sometimes not very distinct from the surrounding armament (047c.jpg). Tergites III-VIII with restricted shagreen, at least on VII and VIII, with conspicuous large points medially and/or posteriorly. Lateral taeniae of segments IV-VIII: 4,4,4,4,5.
Anal segment: Anal lobe ratio 1.4-1.7 (m=1.6, n=10). Fringe of anal lobe with 44-58 taeniae (m=54, n=10). Setae of anal lobes dorsal, at least the anterior and posterior displaced well within the bases of the marginal taeniae; the anterior seta situated in the anterior half of the lobe (047d.jpg).
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 662: Orthocladiinae 74 Psectrocladius of the Text Key.

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

Ecological notes
Peat pools and streams; mainly montane.