Key: Step 133. Chironomini 30

133a. Conjunctives III/IV, IV/V and V/VI armed with points. Comb of segment VIII absent. (Thoracic horn much branched.)

Step 134. Chironomini 31 Fleuria

133b. If conjunctive V/VI armed with points, comb of segment VIII present.

Step 136. Chironomini 33
Decision path