Angler-fly-pattern

Guides

• Isonychia georgiae

  Isonychia georgiae is a brushlegged mayfly species in the family Isonychiidae, first described by McDunnough in 1931. It is part of the order Ephemeroptera, an ancient lineage of aquatic insects dating to the Carboniferous period. Like other Isonychia species, it is known to anglers as a "slate drake" mayfly. The species is documented from North America.

  EphemeropteraIsonychiidaeaquatic-insectNorth-Americaslate-drakebioindicatorangler-fly-pattern