Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 458. Tanytarsini 99 Tanytarsus

458a. Dorsocentral seta 4 robust, spine-like in appearance, 3µm to over 5µm in breadth near base, tapering from base to apex; 110µm long (140i.jpg). Point patches of tergites III-VI broad oval, of 6-10 longitudinal rows of points, the patch on IV less than 3 times as long as broad.

Tanytarsus verralli

458b. Dorsocentral seta 4, though conspicuously thicker than 3, is seta-like, 2.5µm or less in breadth at base usually more or less parallel-sided for the basal half (140c.jpg). Point patches of tergites III-VI elongate oval, on IV more than 3 times as long as broad.

Step 459. Tanytarsini 100 Tanytarsus
Decision path