Northern Checkerspot
Chlosyne palla
Chlosyne palla, the northern checkerspot, is a butterfly of the family Nymphalidae that is found in North America. They range from southern British Columbia to Alberta, south to California, Utah, and Colorado, excluding Nevada. Source
Where it is now
No records in the last 8 weeks. It may be out of season where the observers and sensors are.
See the Northern Checkerspot on the live map
Movement and weather
Over the weeks it was present in the past year, its centre in North America ranged from 38°N in April to 48°N in June, about 1,100 km apart.
Arrival dates
The week it was first heard regularly in each region, after at least six weeks away. Dates differ from south to north, so a region has a range.
| Region | First arrival | Last arrival | Typical peak | Areas |
|---|---|---|---|---|
| North America | 8 June 2026 | 8 June 2026 | 22 June 2026 | 1 |
Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.