Speyeria callippe
In 3 days ~20% in a week ~30%
Speyeria callippe, the callippe fritillary, is a North American species of butterflies in the brush-footed family Nymphalidae. Speyeria callippe can reach a wingspan of 5–6.4 cm (2.0–2.5 in). In these large and widespread butterflies the color of the upperside of the wings varies from tawny to bright red-brown with black evenly-spaced zigzag stripes. The entire outer contour is black-brown, divided by a row of pale lunules. The underside of the forewings is red fawn, with the same design as above, and a series of marginal silver lunules. The underside of the hindwings is brown, with about twenty-two large silvered spots and triangular silver submarginal spots with narrow brown edges. In the last stage the larvae are greyish, with black and grey patches and black-orange spines.
Speyeria callippe is a univoltine... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Grand Teton National Park | 🇺🇸 United States | |
| 2 | Yellowstone National Park | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Callippe Fritillary sighting in Yellowstone National Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 81st most-seen of the 160 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
June–July and September
In those months about 10% of wildlife watchers report a Callippe Fritillary in Yellowstone National Park on a given day, against under 5% in August and October–May, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Callippe 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.
Among the best
Of the 2 parks where we can rate Callippe Fritillary sightings, Yellowstone National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Grand Teton National Park (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Callippe Fritillary is recorded against all the insects logged in Yellowstone National Park (11 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.
