Key: Step 245. Chironomini 142 Parachironomus

245a. Sternite I with 2 large antero-lateral humps on each side, both usually armed with short teeth (sometimes the outer hump is smooth).
110-2.jpg species overview

Parachironomus biannulatus

245b. Sternite I without toothed humps.

Step 246. Chironomini 143 Parachironomus
Decision path