Template:Heptagenia
From WikiEducator
Heptagenia
- Order
- Ephemeroptera
- Family
- Heptageniidae
- Genus
- Heptagenia
- Tied fly
- Little Graywinged Olive
Heptagenia are easily characterized by their flat head. The claws have just one basal tooth and no denticles (serrated edges). The gill on abdominal segment 7 has multiple fibrils at is base (thread-like structures) and has a single tooth on its claws but is smooth otherwise. Gills on segment 7 are similar to those on all other segments, but may be smaller in size.
