Chironomidae Exuviae
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Chironomidae Exuviae
Key: Step 199. Chironomini 96 Chironomus

199a. Sternite III with lateral shagreen bands restricted to the anterior half and spreading inwards anteriorly, but not meeting medially; the shagreen is composed of very small spinules arranged for the most part in long transverse rows. Sternite IV with lateral bands much reduced.

Chironomus pe34

199b. Sternite III with lateral shagreen bands not spreading inwards anteriorly, of larger spinules, mostly isolated, but sometimes in groups of two or three.

Step 200. Chironomini 97 Chironomus
Decision path