Chaetocladius laminatus

Author: Brundin, 1947

Diagnosis (Material in coll. ZSM)
Exuviae 3.0, 3.5mm long (n=2).
Cephalothorax: Thoracic horn elongate, 120-138µm long, small-toothed, pointed at apex; ThR 5.5-6.3 (n=2). Precorneal setae 1-3: 80, 85; 65, 78; 65, 75µm long (n=2).
Abdomen: Tergite I armed at least antero-laterally. Tergites II-VIII posteriorly with a conspicuous narrow transverse band of teeth, the remainder of the tergites covered with small points. Points of apical bands smaller than those in mid-tergite on segments III-VI. Most of the points on the pleura of segment IV smaller than those on the tergite. Posterior transverse tooth rows of sternites III-VIII continuous, or broken medially, the colourless teeth intermittently dispersed across the sternites. Two of the lateral setae of segments II-V short and spine-like. Lateral setae 1-4 of segment IV: 45-55; 60-68; 55-65; 35-55µm long (n=2); 1 and 3 three to four times as thick as 2, 4 very narrow; longest seta 0.18, 0.25x length IV (n=2).
Anal segment: Anal lobes rounded laterally, fringe absent. Anal lobes with 3 macrosetae short and strong, thorn- or spine-like, 25-30µm long (n=2); length 4-5x width of lobe (n=2).

Note: Of type Chaetocladius pe2a Langton, 1984.

Species keys out at Page 796: Orthocladiinae 208 Chaetocladius of the Text Key.

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

Ecological notes
Northern and montane seepages and pools.