Key: Step 813. Orthocladiinae 225 Pseudorthocladius

813a. Anal lobes drawn out posteriorly into a downwardly curved point: the anal macrosetae arise vertically from the upturned margin before the apex of the lobes; crest reduced to a few small points near base or absent (067h.jpg) (in mounts the anal projections may be splayed out on each side). Note Or225 (067g.jpg)

Pseudorthocladius berthelemyi

813b. Anal lobes not drawn out into a point.

Step 814. Orthocladiinae 226 Pseudorthocladius
Decision path