A darkly mottled species. Largest of the family.
Throughout eastern half of North America, excluding
Florida. 7/8ths". Hatches all summer. Swimming
can appear like minnows. Rivers and moderate size
streams.
"Dark Golden Drake"
Potamanthus rufus
hacklegill mayfly nymph
A darkly mottled species. Largest of the family.
Throughout eastern half of North America, excluding
Florida. 7/8ths". Hatches all summer. Swimming
can appear like minnows. Rivers and moderate size
streams.