Key: Step 754. Orthocladiinae 166 Limnophyes

754a. Paratergite IV unarmed. (Tergite IV with 81 long spines posteriorly; VI with 58 (n=1). Longest spine on IV 57µm; on VI 65µm. Tergite VIII small-toothed.)

Limnophyes brachytomus

754b. Paratergite IV armed with small points.

Step 755. Orthocladiinae 167 Limnophyes
Decision path