Trout-food-source
Guides
Drunella tuberculata
spiny crawler mayfly
Drunella tuberculata is a species of spiny crawler mayfly in the family Ephemerellidae, described by Morgan in 1911. It is found in North America and is closely related to D. allegheniensis, from which it can be distinguished by specific morphological characters. The species is part of a group of mayflies important to fly fishermen, where nymphs and adults serve as significant food sources for trout and other sport fish.