Author: (Kieffer, 1921)
Diagnosis
Exuviae 2.1, 2.4mm long (n=2).
Cephalothorax: Thoracic horn elongate, smooth (062d.jpg); horn 75, 110µm long; ThR 6, 11 (n=2).
Abdomen: Tergites without longitudinal ridges posteriorly. Tergites II-VII or II-VIII each with a posterior transverse row of teeth which may be flattened and contiguous, without a similar anterior transverse row. Posterior transverse tooth row continuous across tergite II. Teeth of the posterior transverse row elongate and separate from each other. Tergites VI-VIII with median point patches, more or less circular, best developed on segment VIII.
Anal segment: Anal lobe ratio 2.0 (n=1). Anal lobes flat, without strong teeth along the lateral margins and not extended posteriorly into a downwardly curved point. Anal lobes without taeniate fringe; with three apical setae, 0.41x length of the anal lobe (n=1).
(Linked adult male: Langton and Pinder, 2003a)
Species keys out at Page 778: Orthocladiinae 190 Thienemannia of the Text Key.
Distribution
W+C Europe.
(For more information see module IdentifyIt – file: Orthocladiinae).
Ecological notes
Montane stream; larva in damp moss.