Lithotanytarsus dadesi

Author: Reiss, 1991

Diagnosis (Material in coll. ZSM)
Exuviae 2.3-3.2mm (m=2.3mm, n=13).
Cephalothorax: Cephalic tubercles short, rounded cones; frontal setae absent. Thoracic horn 230-360µm long (m=292.7µm, n=11), horn setulated from basal two-fifths to tip, the longest setae about as long as the horn is maximally wide (127h.jpg); seta 26-36µm long (m=30.3µm, n=8); ThR 7.3-13.0 (m=10.3, n=8).
Abdomen: Hook row II 0.43-0.55x width tergite (n=5); hooks 67-114 (n=6). Pedes spurii B II very weak. Tergites II to V with an anterior transverse band of dense small points; on II to IV also with a postero-median pair of point patches which are much less dense and joined to the anterior transverse band to a greater or lesser degree on each side of the mid-line (127i.jpg). Segment VIII without a postero-lateral comb or spur. Lateral taeniae of segments V-VIII: 0,0,0,0.
Anal segment: Anal lobes without trace of a fringe or apical seta (127j.jpg).

Species keys out at Page 359: Tanytarsini 2 Lithotanytarsus of the Text Key.

Southwest-Palaearctic endemic. (Azzouzi et al., 1992a)
(For more information see module IdentifyIt – file: Chironominae).

Ecological notes
Mediterranean streams.