Key: Step 409. Tanytarsini 51 Rheotanytarsus

409a. Anal lobes without a dorsal seta and fringed with 19-30 taeniae.

Rheotanytarsus rhenanus

409b. Anal lobes with a long dorsal seta and fringe with 10-13 taeniae.

Rheotanytarsus pe1
Decision path