Key: Step 303. Chironomini 200 Polypedilum

303a. 2 lateral taeniae on segment IV. Apical point bands of tergites III and IV widely broken medially (124f.jpg). Thoracic horn with branches strongly toothed.

Polypedilum pe9

303b. 1 lateral taenia on segment IV. Apical point bands of tergites III and IV continuous. Thoracic horn branches without noticeable teeth.

Polypedilum pe14
Decision path