Procloeon viridocularis (Ephemeroptera: Baetidae) from Michigan and Pennsylvania, new range extensions with comments on the species

Procloeon viridocularis is reported for the first time from both Michigan and Pennsylvania. These collections are also the first reports of this species outside the southeastern United States. Previously, this species was known only from Alabama, Florida, Georgia, Mississippi and South Carolina The larva of Procloeon viridocularis is distinct, if not unique, among Nearctic Procloeon based on a combination of characters including elongate claws, simple gills, long, narrow maxillary palps, and terminal segment of the labial palps greatly expanded. The larvae are similar to larvae of the genus Pseudocentroptiloides. A synoptic comparison and contrast of the larvae of this species with Pseudocentroptiloides is provided.