Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 492. Tanytarsini 133 Tanytarsus

492a. Armament of tergite IV with spines increasing in length posteriorly (145i.jpg). Thoracic horn not, or hardly, spinulate. Cephalic tubercles obvious, 30-33µm long.

Tanytarsus pe11

492b. Armament of tergite IV with spines equally long or decreasing in length posteriorly. Thoracic horn spinulate at least at tip. Cephalic tubercles very weak.

Step 493. Tanytarsini 134 Tanytarsus
Decision path