Cricotopus algarum

Author: (Kieffer, 1911)

Diagnosis (Material in coll. ZSM; in part after Hirvenoja, 1973a - in italics)
Exuviae 4.8-5.3mm long (n=6).
Cephalothorax: Cephalic tubercles absent; frontal setae on frontal apotome. Thoracic horn absent.
Abdomen: Length hook row II 0.52-0.62 of width tergite II (n=3); hooks 65-99 (n=4) in 2 rows. Anterior and posterior transverse bands clearly separate on tergites III-VI. Armament of tergites III-VI somewhat trapezoidal, deep, occupying the second and third quarters of the tergites, not extending past the anterior adhesion marks (087a.jpg). Point patches absent on tergites VII and VIII. Pedes spurii B II weakly developed. Dorsal setae I-VIII: 4,4,4,5,5,5,5,2; Lateral setae I-VIII: 1,3,3,3,3,3,4,4; Ventral setae I-VIII: 3,3,4,4,4,4,4,0; lateral seta 4 on VIII clearly stronger than the other lateral setae.
Anal segment: Anal lobe ratio 2.2 (n=1). Anal lobes without fringe. Anal macrosetae about 150µm long, more or less equally strong; length 0.44, 0.49x length of the anal lobe (n=2).

Species keys out at Page 946: Orthocladiinae 357 Cricotopus of the Text Key.

Widespread in (continental) Europe (not Scandinavia?).
(For more information see module IdentifyIt – file: Orthocladiinae).

Ecological notes