Form tentatively placed in subgenus Isocladius: Langton, 1991
Diagnosis
Exuviae 3.5, 4.0mm long (n=2).
Cephalothorax: Frontal setae on frontal apotome, setae 100-160µm long. Thoracic horn 185, 188µm long, club-shaped with a narrow neck, 'winged', i.e. with a broad blunt tooth on each side, and with a number of coarse teeth at apex (086e.jpg); ThR 2.9, 3.1 (n=2). Thoracic setae more than 55µm long, precorneal setae 135-220µm long. Precorneal setae not on conspicuous mounds.
Abdomen: Length hook row II 0.54, 0.55 of width tergite II; hooks 85, 86 (n=2). Small pedes spurii B present on segments II and III (086f.jpg). Median point patch of tergites III and IV widely separated from the posterior transverse band. Posterior transverse band of tergite VI reduced to shagreen. (n=1). Point patches absent on tergites VII and VIII.
Anal segment: Anal lobe ratio 2.0 (n=1). Anal lobes without fringe. Length of anal macrosetae 0.37, 0.44x length of the anal lobe (n=2).
Form keys out at Page 918: Orthocladiinae 329 Cricotopus of the Text Key.
Distribution
Widespread in Europe.
(For more information see module IdentifyIt – file: Orthocladiinae).
Ecological notes
Lakes.