Limnophyes spinigus

Author: Saether, 1990

Diagnosis (n=1, material in coll. ZMBN, leg. J. Moubayed; in part after Saether 1990a - in italics)
Exuviae 2.5mm long.
Cephalothorax: Thoracic horn reduced to a small tubercle. Precorneal setae small. Thorax more or less smooth.
Abdomen: Anterior points of tergites (excluding those on the anterior transverse apodemes) at most indistinctly arranged in transverse rows. Tergite I without shagreen, II-VIII with coarse and extensive, but relatively sparse shagreen; II-VIII with posterior transverse rows of translucent or slightly darkened elongate spines. Posterior long spines IV 66; VI 40. Longest spine IV 44µm, VI 44µm long. Paratergites IV-VII with a broad band of points of different sizes. Pedes spurii A and B absent. Sternite I without shagreen, on II-VIII not observable. Lateral setae IV 90µm long. Four long lateral setae on tergite VIII, the fourth reduced to a small hair, 52µm long; lateral setae 1-4 on VIII: 165, 139, 139, 184µm long.
Anal segment: Tergite IX with anterior coarse shagreen. Anal lobes smooth, somewhat rectangular, without fringe. Anal macrosetae of anal lobes long, 0.71x length of the anal lobe, setae thin and apically curved. Genital sheaths in male overreaching by 30µm.

Species keys out at Page 767: Orthocladiinae 179 Limnophyes of the Text Key.

N Europe to mountainous regions in the south.
(For more information see module IdentifyIt – file: Orthocladiinae).

Ecological notes
River, French Pyrenees.
Probably truly aquatic, larvae in rivers and littoral in lakes (Saether, 1990a).