This common name refers to only one species.
These are sometimes called Iron Duns.
This is the first really good dry-fly opportunity of the season for most Eastern anglers. They are large mayflies and they have good points of vulnerability both underwater and on the surface.
Epeorus pleuralis (Quill Gordon) Mayfly Nymph
View 4 PicturesThis Epeorus pluralis dun is recently deceased in these photos. I decided not to photograph several lively, less mature nymphs. This one was ready to hatch, as indicated by the black wing pads (
Wing pad: A protrusion from the thorax of an insect nymph which holds the developing wings. Black wing pads usually indicate that the nymph is nearly ready to emerge into an adult.). I believe it had not been dead long enough to lose its natural coloration.
The wing pads on this final instar Baetidae
mayfly nymph are extremely dark.
Collected April 19, 2006
from in Added to Troutnut.com by on April 21, 2006