Speyeria hydaspe
In 3 days ~40% in a week ~70%
Speyeria hydaspe, the Hydaspe fritillary, is a species of orange-brown butterfly found in the western portions of the United States and Canada. A small fritillary, it usually has cream-colored underwing spots, but the Vancouver Island subspecies has silver spots. It is similar to S. zerene and S. atlantis, but may be distinguished by the smooth and even appearance of its postmedian spotband.
The caterpillars feed on violets including Viola glabella. A single brood flies from July through September and feeds on flower nectar. They may be found in moist forests, in clearings and subalpine meadows. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Olympic National Park | 🇺🇸 United States | |
| 2 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States | |
| 3 | Glacier National Park | 🇺🇸 United States | |
| 4 | Yosemite National Park | 🇺🇸 United States | |
| 5 | Banff National Park | 🇨🇦 Canada |
Possible
About 20% of wildlife watchers report a Hydaspe Fritillary sighting in Olympic National Park on a given day, based on 153 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 4th most-seen of the 207 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
August
In that month about 30% of wildlife watchers report a Hydaspe Fritillary in Olympic National Park on a given day, against under 5% in October to June, the lowest months. That is one of Olympic National Park's driest months, with about 45 mm of rain against 370 mm in November.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Hydaspe Fritillary sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 5 parks where we can rate Hydaspe Fritillary sightings, Olympic National Park has the highest daily chance: about 20%. Next come Sequoia and Kings Canyon National Parks (United States, about 10%) and Glacier National Park (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Hydaspe Fritillary is recorded against all the insects logged in Olympic National Park (153 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
