Drunella grandis

Drunella grandis is a species of spiny crawler mayfly in the family Ephemerellidae. It is found in North America.

Subspecies
These three subspecies belong to the species Drunella grandis:
 * Drunella grandis flavitincta (McDunnough, 1934)
 * Drunella grandis grandis (Eaton, 1884)
 * Drunella grandis ingens (McDunnough, 1934)