| Family | Lycaenidae |
|---|---|
| Subfamily | Theclinae |
| Genus | Callophrys |
| Species | rubi |
| Authority | (Linnaeus, 1758) |
| English Name | Green Hairstreak |
| 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 |
The Green Hairstreak can be found on poor grassland, heathland and at the edges of bogs and marshes. The butterflies like resting in trees and shrubs, such as Alder Buckthorn (Frangula alnus), where they are well hidden by their green colour. However, a sharp tap on a branch brings tens of them out into the air. The Green Hairstreak is extremely polyphagous. The eggs are laid on a variety of plants, including Heather (Erica spp.), rockroses (Helianthemum spp.), and Alder Buckthorn (Frangula alnus), leguminous plants and species of Rosaceae. The caterpillars feed on the buds, flowers and young leaves. They pupate in the litter layer and the pupa hibernates. The Green Hairstreak is single-brooded.
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