Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 553. Diamesinae 29 Diamesa

553a. Tergite II with a posterior row of teeth. Thoracic horn longer, over 500µm long (030e.jpg). Segments VII and VIII shorter, e.g. segment VIII well over twice as wide as long. 2 precorneal setae.

Diamesa permacra

553b. Tergite II with posterior row of teeth at most indicated. Thoracic horn shorter, less than 500µm long. Segments VII and VIII longer, e.g. segment VIII only twice as wide as long. 3 precorneal setae (rarely only 2?).

Diamesa dampfi
Decision path