Key: Step 691. Orthocladiinae 103 Rheocricotopus

691a. Segments III-VII with 3 strong lateral setae, 2 close together at, or before, mid-segment, the other well-separated from them in the posterior half of the segment. Tergites II-VIII with a posterior transverse band of sturdy teeth (046j.jpg); tergite II in addition with a small median pad of hooks (046i.jpg). Anal lobes with 3 long, curved apical setae.

Rheocricotopus tirolus

691b. Without this combination of characters.

Step 692. Orthocladiinae 104
Decision path