Byssus Skipper
Problema byssus
Problema byssus, the byssus skipper or bunchgrass skipper, is a butterfly of the family Hesperiidae. It is found along the Atlantic coastal plain of North America, from North Carolina south to Florida and the Gulf States and from northern Indiana west to Iowa and south to Missouri and Kansas. 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 Byssus Skipper on the live map
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 | 27 July 2026 | 27 July 2026 | 3 August 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.