Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 380. Tanytarsini 23 Paratanytarsus

380a. Anal lobes with fewer than 10 taeniae. (Tergite IV with circular or transversely oval point patch (133d.jpg).)

Paratanytarsus hyperboreus

380b. Anal lobes with more than 10 taeniae. (Paratanytarsus laccophilus may have as few as 11 taeniae, but is easily recognized by its lens-shaped point patch on tergite IV.)

Step 381. Tanytarsini 24 Paratanytarsus
Decision path