Spiny-crawler-mayfly
Guides
Attenella margarita
spiny crawler mayfly
Attenella margarita is a species of spiny crawler mayfly in the family Ephemerellidae. It exhibits a disjunct east-west distribution pattern across North America, which is rare among mayflies. The species has been documented from the southern half of Canada and the continental United States, with a southeastern range extension to North Carolina representing approximately 1,300 km beyond previously known western localities.
Caudatella heterocaudata
A species of spiny crawler mayfly in the family Ephemerellidae, originally described by McDunnough in 1929. The species has undergone taxonomic revision, with Caudatella circia previously treated as distinct but now recognized as a synonym. Larvae possess diagnostic morphological characters that allow separation from the related C. hystrix complex.
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.
Ephemerella tibialis
Little Western Dark Hendrickson
Ephemerella tibialis is a species of spiny crawler mayfly described by McDunnough in 1924. It belongs to the family Ephemerellidae, a group known for their distinctive spiny or tuberculate body ornamentation. The species is found in North America and is recognized among anglers by the common name Little Western Dark Hendrickson, indicating its importance as a model organism for fly-fishing.
Serratella serrata
little sooty olive
Serratella serrata is a species of spiny crawler mayfly in the family Ephemerellidae. It is found in the south half of Canada and the eastern United States. The species is commonly known as the little sooty olive.