Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 300. Chironomini 197 Polypedilum

300a. Cephalic tubercles, if well developed, not fused together to form a single structure.

Step 301. Chironomini 198 Polypedilum

300b. Cephalic tubercles fused medially to form a large conical projection from the apotome (149a.jpg). (Tergites II-VI almost covered with small points.)

Subgenus Cerobregma

Polypedilum cer-pe1
Decision path