Key: Step 847. Orthocladiinae 258 Orthocladius

847a. Posterior bands narrower, stopping well short of setae D5 anteriorly (073k.jpg).

Orthocladius rivicola

847b. Posterior point bands broader, on tergites V-VII contacting or enclosing setae D5 (072m.jpg).

Orthocladius luteipes
Decision path