''Siphlonurus alternatus'' is a species of primitive minnow mayfly in the family

Siphlonuridae Siphlonuridae, also known as the primitive minnow mayfly is a family of insects belonging to the order Ephemeroptera. They are adapted to cool waters. Taxonomy The family is divided into the following extant genera: # ''Ameletoides'' Tillyard, 1 ...

. It is found in North America and Europe. In North America its range includes all of Canada, the northeastern United States, and Alaska.

References

Siphlonuridae Articles created by Qbugbot Insects described in 1824 Insects of Canada Endemic fauna of Alaska Taxa named by Thomas Say {{mayfly-stub