Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 496. Tanytarsini 137

496a. Abdominal tergites II-VIII with extensive armament OR tergite II with a pair of anterior point patches in addition to those on tergites III-VI.

Step 497. Tanytarsini 138 Parapsectra

496b. Abdominal tergites VII and VIII with very restricted armament or smooth. Tergite II without anterior point patches.

Step 499. Tanytarsini 140
Decision path