Form described by Langton, 1991
Diagnosis
Exuviae 3.0-3.8mm long (n=5).
Cephalothorax: Thoracic horn 273-350µm long (n=6) (150k.jpg); ThR 3.7-6.4 (n=5).
Abdomen: Posterior points of tergites III-V particularly strong, golden, set on a swollen transverse mound (068j.jpg); posterior points of tergite II small, contrasting strongly with those on tergite III. No lateral taeniae on segments III-VI; lateral setae of segment VII strong and stiff. Four or five well-developed, long, somewhat taeniate lateral setae on segment VIII.
Anal segment: Fringe of anal lobe with 12-15 taeniae (n=4), taeniae short, much shorter than the anal macrosetae. (Fringe very brittle, frequently at least partially missing.)
Form keys out at Page 687: Orthocladiinae 99 Parametriocnemus of the Text Key.
Distribution
NW Africa.
(For more information see module IdentifyIt – file: Orthocladiinae).
Ecological notes
Streams.