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Pacific Fritillary

Boloria epithore · Brush-footed Butterflies

Pacific Fritillary (Boloria epithore)
(c) Bill Bouton, some rights reserved (CC BY-SA) · CC BY-SA · via iNaturalist

Pacific Fritillary (Boloria epithore) is in the Brush-footed Butterflies family (Nymphalidae). Across the U.S., iNaturalist users have logged 2,628 research-grade observations of it in our sample, peaking in June.

Seasonal pattern in the national data: summer visitor / breeder. Counts also reflect when people are out photographing, so compare months within a state rather than across states.

When to photograph Pacific Fritillary: observations by month (U.S.)

JanFebMarAprMayJunJulAugSepOctNovDec

About Pacific Fritillary

Boloria epithore, the Pacific fritillary, is a butterfly of the Nymphalidae family. It is found in western North America from California to British Columbia and Alberta.From Wikipedia via iNaturalist — article, CC BY-SA.

Pacific Fritillary by state

StateObservationsPeak monthMain season
California907JuneJun–Jul
Oregon857JuneJun–Jul
Washington745JulyJun–Jul
Montana80JulyJun–Jul
Idaho38JulyJun–Jul

Main season = months with at least 30% of the state's peak-month count.

Related butterflies (Brush-footed Butterflies)

Photography tips

  • Butterflies are sluggish on cool mornings — the best time for close approaches.
  • Keep the sensor parallel to the wings for edge-to-edge sharpness.
  • Nectar plants in bloom are reliable places to wait.

FAQ

When is the best time to photograph Pacific Fritillary?
Nationally, June has the most observations, with the main season from June to July.
Where is Pacific Fritillary most often seen?
The most observations come from California, Oregon, Washington.