Key: Step 660. Orthocladiinae 72 Rheocricotopus

660a. Sternites V and VI with a posterior row of strong teeth especially well-developed between setae V5 (043f.jpg). Pedes spurii B of segment II absent. Exuviae less than 4.0mm long.

Rheocricotopus atripes

660b. Sternites V and VI with posterior row of teeth weakly developed between setae V5 (043g.jpg). Pedes spurii B of segment II well-developed. Exuviae 4.3mm long or more.

Rheocricotopus glabricollis
Decision path