''Erynnis pacuvius'', the Pacuvius duskywing, Dyar's duskywing or buckthorn dusky wing, is a skipper

butterfly Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprises ...

of the family

Hesperiidae Skippers are a family of the Lepidoptera (moths and butterflies) named the Hesperiidae. Being diurnal, they are generally called butterflies. They were previously placed in a separate superfamily, Hesperioidea; however, the most recent taxonomy ...

. It is found in most of the western United States and in southern

British Columbia British Columbia (commonly abbreviated as BC) is the westernmost Provinces and territories of Canada, province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include ...

.Pacuvius Duskywing
Butterflies of Canada The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan ...

is 29–33 mm. The flight period is between June and July in the north with a second generation in the south. The larvae feed on ''

Ceanothus ''Ceanothus'' is a genus of about 50–60 species of nitrogen-fixing shrubs and small trees in the buckthorn family (Rhamnaceae). Common names for members of this genus are buckbrush, California lilac, soap bush, or just ceanothus. ''"Ceanothus"' ...

'' species.''Erynnis''
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References

External links

Nearctica
Pacuvius Duskywing
BugGuide
Pacuvius Duskywing
Butterflies and Moths of North America Erynnis Butterflies of North America Butterflies described in 1878 Taxa named by Joseph Albert Lintner {{Pyrginae-stub