First adult and egg descriptions of Caudatella edmundsi (Ephemeroptera: Ephemerellidae) from Montana (U.S.A.), with habitat observations

Publication Type:

Journal Article

Authors:

Jacobus, Luke M.; Newell, Robert L.; McCafferty, W. P.

Source:

Entomological News, The American Entomological Society, Volume 117, Issue 2, p.175-180 (2006)

Call Number:

A06JAC01IDUS

Keywords:

Caudatella edmundsi, mayfly

Abstract:

Series of reared material from Montana provide the bases for the first descriptions of the adults of Caudatella edmundsi. Male adults are differentiated from congeners based on their having abdominal sterna with dark anterior corners and penes with the gonopores subparallel and projected dorsally. The first description of Caudatella eggs shows them to have a chorion without reticulations. Larvae of C. edmundsi usually are associated with moss in moderate to slow current regions of cool, clear, shaded streams.