Author: (Kieffer, 1925)
Diagnosis
Exuviae 5.0-6.0mm long (m=5.4, n=7) (003-3.jpg).
Cephalothorax: Thoracic horn two or more times as wide near apex as at base, 250-313µm long (m=281µm, n=7); ThR 2.4-3.1 (m=2.7, n=7). Plastron plate length 0.25-0.41 of horn length (m=0.31, n=7). (003h.jpg)
Abdomen: Tergites and paratergites III and IV covered in spinules. Tergites VII and VIII with stiff spinules which get shorter in the postero-lateral corners.
Anal segment: Segment drawn out posteriorly into a toothed spur on each side with two widely separated, small spine- or hair-like setae on each side and a fine hair-like seta on each apical spur internally. Length anal processes 0.69-0.72 of length anal segment; anterior seta of processes at 0.15-0.2 of length process (m=0.18, n=7). (003i.jpg)
(Linked adult male: Langton and Pinder, 2003a)
Species keys out at Page 12: Podonominae 6 Lasiodiamesa of the Text Key.
Distribution
Holarctic species: widespread in Europe (not Mediterranean).
(For more information see module IdentifyIt – file: Other subfamilies).
Ecological notes
Sphagnum bogs and acid springs; most common in the far north.