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Species Page - Boloria epithore
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scientific name    Boloria epithore    

common name     Pacific Fritillary

habitat
In Alberta, found in moist mountain meadows and forest openings.

seasonality
One brood per year flying in June and July depending on snowpack and elevation.

identification
The wing upperside is typical of the genus, with rows of black spots on a rust-orange background. The hindwing underside lacks prominent pale markings. Distinguished from B. bellona, which is most similar in appearance, by the evenly-rounded forewing edge, which is angular in bellona giving a squared-off appearance. It is unclear which subspecies name best applies to Alberta populations. Layberry et al. (1998) and Bird et al. (1995) assign the name uslui, while Guppy & Shepard (2001) apply the name chermocki; Pyle (2002) reports uslui falls within the variation range of chermocki, so perhaps the use of the name chermocki is most appropriate.

life history
The larvae are predominantly grey, with two reddish sublateral lines and spines; they overwinter in the third or fourth instar (Scott 1986). Although the recorded flight dates range from June to September, the Pacific Fritillary flies for only two- to three weeks in any given locality (Guppy & Shepard 2001).

conservation
Not of concern.

diet info
The larval host plants are not known in Alberta, although they are most likely violets, as Viola glabella and V. sempervirens are used in Washington (Pyle 2002).

range
The Pacific Fritillary is aptly named, as the core of its range is within the Pacific Northwest. It occurs from the southern Yukon (single record from Haines Junction) south to central Idaho and California (Layberry et al. l998, Scott 1986).

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=2800



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References (4)
Specimen Info
There are 10 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (10)

 

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