Key: Step 110. Chironomini 7

110a. At least segments IV and V each with an anterior median dorsal spinous plate ('epaulette') distinct from the general armament of the tergite (094+96.jpg). (Thoracic horn much branched).

Step 111. Chironomini 8 Demeijerea

110b. Tergites without such spinous plates.

Step 126. Chironomini 23 Xenochironomus
Decision path