Key: Step 809. Orthocladiinae 221 Clunio

809a. Anal lobes absent; tergite IX with 2 narrow, pale spines on each side (056i.jpg).
056-2.jpg species overview

Clunio marinus

809b. Anal lobes present, truncate posteriorly. Tergite IX without lateral spines.

Step 810. Orthocladiinae 222 Thalassosmittia
Decision path