Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 499. Tanytarsini 140

499a. Fringe of anal lobes restricted to the posterior half of the lobes, of about 15 taeniae or fewer.

Step 500. Tanytarsini 141 Krenopsectra

499b. Fringe of anal lobes complete, usually of many more taeniae.

Step 502. Tanytarsini 143 Micropsectra
Decision path