Key: Step 621. Orthocladiinae 33 Heterotanytarsus

621a. 3rd dorsocentral seta closer to the 4th than to the 2nd. Frontal setae short, about 40µm long.
039-1.jpg species overview

Heterotanytarsus apicalis

621b. 3rd dorsocentral seta closer to the 2nd than to the 4th. Frontal setae longer, about 80µm long.

Heterotanytarsus brundini
Decision path