Synonyms and other taxonomic changes
Eudryas unio – (Hübner, [1831]
Explanation of Names
Species name unio is Latin for "onion" or "large pearl". The latter seems to be the context. (Based on Internet searches.)
Identification
Adult: dark band along outer margin of forewing is scalloped on the inside.
Range
Eastern and central North America
Habitat
usually found near marshy areas where both Epilobium and cattails (Typha) grow together.
Season
This species is univoltine with a partial second generation
on Block Island, RI, flying mainly June and early July but with records as late as mid-September.
(2)Food
Larvae feed on Evening-primrose, grapes, other herbs.
See Also
Beautiful Wood-Nymph (
Eudryas grata) dark band along outer margin of forewing is smoothly curved on the inside
Compare E. unio/E. grata:
Internet References
Moth Photographers Group - photos of living and pinned adults.
Lynn Scott, Ontario live adult photos, description, foodplants, flight dates
Georgia Leps pinned adult image (James Adams, Dalton State College)