Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 265. Chironomini 162 Stenochironomus

265a. Tergites VII and VIII armed anteriorly. Hook row II not extending for most of the width of the tergite.

Subgenus Petalopholeus

Stenochironomus fascipennis

265b. Tergites VII and VIII without anterior armament. Hook row II extending across most of the width of the tergite, though it may be widely broken medially.

Subgenus Stenochironomus

Step 266. Chironomini 163 Stenochironomus
Decision path