Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 170. Chironomini 67 Chironomus

170a. Parasternites II, III and sometimes IV shagreened. (Shagreen of sternite II with a gap posteriorly between the lateral bands and the median patch.)

Chironomus luridus

170b. Parasternite II with shagreen; III without shagreen; IV may have a few minute points in posterior half.

Step 171. Chironomini 68 Chironomus
Decision path