Key: Step 794. Orthocladiinae 206 Chaetocladius

794a. The 1st 3 lateral setae of segments II-V more similar; although the 1st and 3rd are stiff they are not much wider than the 2nd and about as long (061k.jpg).

Chaetocladius pe2c

794b. 2 of the lateral setae of segments II-V short and spine-like.

Step 795. Orthocladiinae 207 Chaetocladius
Decision path