Erynnis pacuvius

Erynnis pacuvius, the Pacuvius duskywing, Dyar's duskywing or buckthorn dusky wing, is a skipper butterfly of the family Hesperiidae. It is found in most of the western United States and in southern British Columbia.[1]

Pacuvius duskywing
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Lepidoptera
Family:
Hesperiidae
Tribe:
Erynnini
Genus:
Erynnis
Species:
E. pacuvius
Binomial name
Erynnis pacuvius
(Lintner, 1878)
Synonyms
  • Nisoniades pacuvius Lintner, 1878
  • Thanaos pacuvius Godman & Salvin, [1899]

The wingspan is 29–33 mm. The flight period is between June and July in the north with a second generation in the south.[1]

The larvae feed on Ceanothus species.[2]

References
  1. Pacuvius Duskywing, Butterflies of Canada
  2. Erynnis, funet.fi
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