Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 248. Chironomini 145 Parachironomus

248a. Sternite II with the posterior transverse spine band represented, but with no trace of the anterior band. Cephalic tubercles short and broad (110k.jpg).

Parachironomus parilis

248b. Sternite II with both anterior and posterior spine bands represented, though one or both of them may be interrupted medially. Cephalic tubercles conical.

Step 249. Chironomini 146 Parachironomus
Decision path