Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 449. Tanytarsini 90 Tanytarsus

449a. Tergite II with the anterior patches of small points usually fused medially and joined to the posterior point patches, though the connecting bands may be sparse in mid-segment (139h.jpg).

Tanytarsus usmaensis

449b. Tergite II with the anterior point patches separated by a point-free gap medially; anterior and posterior point patches not joined, mid-tergite without points.

Tanytarsus nigricollis
Decision path