Cricotopus beckeri

Author: Hirvenoja, 1973

Diagnosis (n=3)
Exuviae 4.0-4.3mm long.
Cephalothorax: Cephalic tubercles conspicuous, swollen, with an apical finger-like projection (087m.jpg); tubercles 80-105µm long, apex 40-50µm long. Antennal sheath tubercle without projection. Thoracic horn present.
Abdomen: Length hook row II 0.43-0.48x width tergite; hooks 84-91. Pedes spurii B present on segments II and III. Point patches absent on tergites VII and VIII. Four lateral setae on segment VIII.
Anal segment: Fringe absent, macrosetae more or less equally strong, length 0.27-0.33x lobe length. Anal lobes extended beyond the bases of the anal macrosetae to a point (087n.jpg); Anal lobe ratio 2.0-2.3.
(Linked adult male: Hirvenoja, 1973a)

Species keys out at Page 924: Orthocladiinae 335 Cricotopus of the Text Key.

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

Ecological notes
Rivers: north Africa; Madeira.