Micropsectra seguyi

Author: Casas and Laville, 1990

Diagnosis (material leg. J.J. Casas.)
Exuviae 3.9-4.4mm long (n=4).
Cephalothorax: Frontal setae 60-114µm long (n=3). Thoracic horn 200, 280µm long (n=2), seta 0.37, 0.6x horn length (n=2); ThR 5.6, 9.3 (n=2). Posterior thoracic mound moderately swollen.
Abdomen: Length hook row II 0.36, 0.40x width of tergite (n=2); hooks 75-97 (n=4). Armament of tergite II with the lateral point bands completely fused anteriorly, leaving a longitudinally oval bare patch postero-medially. Tergite III with spines or spinules. Tergite IV with lateral longitudinal bands reduced to a few short, broad points or granules on a swelling of the cuticle just posterior to level setae D5 (150e.jpg). Paired anterior point patches present on tergites IV-VI. Pedes spurii B II weak. Comb of segment VIII 20-26µm broad (n=4); with 4-6 marginal teeth (n=4). Lateral taeniae V-VIII: 2/3,(3)4,4,(4)5.
Anal segment: Fringe of anal lobes complete, of 21-29 taeniae (n=4).

Species keys out at Page 517: Tanytarsini 158 Micropsectra of the Text Key.

(For more information see module IdentifyIt – file: Chironominae).

Ecological notes
Stream, southern Spain.