Key: Step 854. Orthocladiinae 265 Orthocladius

854a. Scarcely visible pedes spurii B. Pleurae strongly spinulate (spinules c.10µm long), at least covering pleurae II-VI. Paired point patches may also be present on VII (in which it is unique).

Orthocladius pe2

854b. Pedes spurii B conspicuous (074f.jpg) and pleurae moderately spinulate (spinules c.6µm long) extending from postero-lateral corners to the anterior quarter of at least II-VI.

Orthocladius olivaceus
Decision path