Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 450. Tanytarsini 91 Tanytarsus

450a. Armament of tergite II of strong points, extending laterally nearly to setae D1, forming a continuous patch broken medially at most by narrow bare spaces.

Tanytarsus heusdensis

450b. Armament of tergite II of smaller points, a pair of longitudinal bands joined anteriorly and often posteriorly; narrowest medially, leaving a broad median bare space.

Step 451. Tanytarsini 92 Tanytarsus
Decision path