| Family | Hesperiidae |
|---|---|
| Subfamily | Pyrginae |
| Genus | Pyrgus |
| Species | warrenensis |
| Authority | (Verity, 1928) |
| English Name | Warren's Skipper |
| European Red List 2010 | Least Concern (LC) |
|---|---|
| EU 27 Red List 2010 | Least Concern (LC) |
| European Red List 2025 | Least Concern (LC) |
| EU 27 Red List 2025 | Least Concern (LC) |
| Habitats Directive | |
| Bern Convention | |
| CITES |
Warren’s Skipper occurs mostly on flower-rich alpine grasslands. The males fly where flowers are most abundant, along mountain streams, for example. From a perch on a bush or tall plant, they also defend their territory. The females meanwhile are often found on warm, dry patches near bushes, where they lay their eggs one by one on the rockrose Helianthemum alpestre, preferring the smaller plants. The small caterpillar lives hidden in a spun leaf, while caterpillars of later stages spin two leaves together, and finally, make a larger shelter from several leaves. The Warren’s Skipper is single- brooded and passes the winter as a caterpillar.
Austria / France / France: Mainland / Germany / Italy / Italy: Mainland / Slovenia / Switzerland /