Cricotopus iso-n-spec

Form described by Langton, 1991

Exuviae 3.4-4.0mm long (n=6) (084-1.jpg).
Cephalothorax: Thoracic horn 130-170µm long; ThR 6.2-7.6 (n=6). Precorneal setae arise from conspicuous mounds (084b.jpg).
Abdomen: Length hook row II 0.50-0.65 of width tergite II (n=4); hooks 66-86 (n=5). Median point patch of tergite III a narrow transverse band (084c.jpg). Point patches absent on tergites VII and VIII.
Anal segment: Anal lobe ratio 1.4-1.6 (n=4). Anal lobes without fringe. Length of anal macrosetae 0.49-0.64x length of the anal lobe (n=4) (084d.jpg).

Form keys out at Page 899: Orthocladiinae 310 Cricotopus of the Text Key.

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

Ecological notes
Rock pools in River Tummel, Tayside Region, Scotland.