Say-1839

Guides

• Isonychia arida

  arid howdy mayfly

  Isonychia arida is a species of brushlegged mayfly in the family Isonychiidae. It was described by Thomas Say in 1839, originally as Baetis arida. The species is found in North America and is known by the common name "arid howdy mayfly." Like other members of the genus Isonychia, it belongs to a group commonly referred to as "slate drakes" by anglers.

  mayflyEphemeropteraslate-drakeaquatic-insectbioindicatorNorth-Americabrushlegged-mayflyIsonychiidaeangling-insectSay-1839