Speyeria hydaspe
In 3 days ~30% in a week ~60%
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 |
With luck
About 10% of wildlife watchers report a Hydaspe Fritillary sighting in Sequoia and Kings Canyon National Parks on a given day, based on 19 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 42nd most-seen of the 161 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
July
In that month about 30% of wildlife watchers report a Hydaspe Fritillary in Sequoia and Kings Canyon National Parks on a given day, against under 5% in September to May, the lowest months. That is one of Sequoia and Kings Canyon National Parks's driest months, with about 20 mm of rain against 190 mm in January.
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.
2nd of 5
Of the 5 parks where we can rate Hydaspe Fritillary sightings, Sequoia and Kings Canyon National Parks ranks 2nd at about 10%. The best odds are in Olympic National Park (United States, about 20%).
Same genus: Speyeria
The closest relatives of the Hydaspe Fritillary that you can see in Sequoia and Kings Canyon National Parks (genus Speyeria) are Mormon Fritillary (about 20%) and Great Basin Fritillary (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Hydaspe Fritillary is recorded against all the insects logged in Sequoia and Kings Canyon National Parks (19 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.
