Author: Edwards, 1932
Diagnosis (in part after Hirvenoja, 1973a - in italics)
Exuviae 3.0-3.6mm long (n=7).
Cephalothorax: Cephalic tubercles absent; frontal setae on frontal apotome. Thoracic horn club-shaped with a narrow neck, colourless, smooth or with minute spinules apically, 50-115µm long; ThR 2.0-6.5 (n=7). Precorneal setae not on conspicuous mounds(086m.jpg).
Abdomen: Length hook row II 0.47-0.58 of width tergite II (n=5); hooks 50-72 (n=7) in 2-3 rows. Small pedes spurii B present on segment II. Median point patch of tergites III and IV extending laterally as far as the lateral adhesion marks, narrowly separated from an equally wide posterior transverse point band, to which it is often joined in a number of places leaving a row of narrow bare spaces between (086n.jpg). Point patches absent on tergites VII and VIII. Dorsal setae I-VIII: 3,4,4,5,5,5,5,2; Lateral setae I-VIII: 1,3,3,3,3,3,3,4; Ventral setae I-VIII: 1,3-4,4,4,4,4,4,1, lateral seta 4 on VIII not stronger than the other lateral setae.
Anal segment: Anal lobe ratio 1.5-2.1 (n=4). Anal lobes without fringe. Length of anal macrosetae 0.39-0.58x length of the anal lobe (n=5).
(Linked adult male: Langton and Pinder, 2003a)
Species keys out at Page 916: Orthocladiinae 327 Cricotopus of the Text Key.
Distribution
Holarctic species: widespread in Europe.
(For more information see module IdentifyIt – file: Orthocladiinae).
Ecological notes
Lakes.