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Thecla betulae (Linnaeus, 1758)
Range: Temperate Eurasia.
Distribution in Bulgaria: Very local from sea level to ca. 1400 m (Abadjiev 2001).
Habitat: Bushy places at forest margins and in river valleys.
Bionomics: One generation from July till August; near Burgas found from June till mid-October (Buresch & Tuleschkow 1930). Larval host-plant: Prunus spinosa (Rosaceae) (Tolman & Lewington 1997).
Conservation status: A poorly known, relatively rare species which needs further research. IUCN category: Data Deficient.
Photo: Stoyan Beshkov