Key: Step 145. Chironomini 42 Chironomus

145a. Parasternites II-III armed with points. Comb of segment VIII without reticular ridges. Transparent exuviae (always?).

Chironomus mendax

145b. Parasternites II-IV armed with points. Comb of segment VIII with reticular ridging at base. Exuviae extensively brown.

Chironomus improvidus
Decision path