Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 599. Orthocladiinae 11 Thienemanniella

599a. Tergite VIII with median points spinulate, about 8µm, obviously longer than those on VII; armament of tergites increasing in strength from III to VIII.

Thienemanniella pe1b

599b. Tergite VIII with armament as strong as or weaker than that on VII.

Step 600. Orthocladiinae 12 Thienemanniella
Decision path