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

Pacuvius duskywing
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Hesperiidae
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

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  1. ^ a b Pacuvius Duskywing, Butterflies of Canada
  2. ^ Erynnis, funet.fi
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