Key: Step 665. Orthocladiinae 77

665a. Point patches transversely elongate (occasionally split medially to produce paired point patches) or restricted to tergites VI and VII. Pedes spurii B on segment II conspicuously large, usually elongate conical in shape.

Step 666. Orthocladiinae 78 Nanocladius

665b. Point patches more or less circular, present on tergites IV-VI. Pedes spurii B II in the form of rounded humps or absent.

Step 671. Orthocladiinae 83 Rheocricotopus
Decision path