Key: Step 607. Orthocladiinae 19 Corynoneura

607a. Frontal and dorsocentral setae short and narrow (037f.jpg). (Sternite I armed with spinules antero-laterally or unarmed. Posterior transverse point rows present on sternites only.)

Corynoneura lacustris

607b. Frontal setae and dorsocentral seta 3 long and taeniate. (Frontal setae 4-5µm wide, 165-220µm long; dorsocentral seta 3 about 4µm wide, 120-150µm long.)

Step 608. Orthocladiinae 20 Corynoneura
Decision path