Form described by Langton, 1991
Diagnosis
Exuviae 2.5-3.3mm long (n=3); usually very transparent, sometimes a little infuscated.
Cephalothorax: Cephalic tubercles short conical (136i.jpg). Thoracic horn apically narrowed to a point, 240-300µm long (n=3); ThR 12.0, 13.7 (n=2). Thoracic horn setae restricted to the basal three-quarters, mostly along one edge, leaving the tip free of setae (135k.jpg); longest seta 80-118µm long, 0.27-0.49x horn length (n=3). Pearl row absent.
Abdomen: Tergites II-VI each with an anterior pair of point patches; ArR II-VI 0.58-0.7 : 0.84-1.0 : 1.0 : 0.88-1.0 : 0.72-8.0 (n=3). Armament tergite IV strong, 50-65µm long. Comb of segment VIII 38-55µm wide; with 5-8 marginal teeth (n=3) and very few dorsal points. Lateral taeniae of segments V-VIII: 3,3,4,5.
Anal segment: Fringe of anal lobe with 15-21 taeniae (n=3).
Form keys out at Page 423: Tanytarsini 65 Cladotanytarsus of the Text Key.
Distribution
Portugal and Greece (Laville and Reiss, 1992a).
(For more information see module IdentifyIt – file: Chironominae).
Ecological notes
A river, Portugal.