Full scientific name:
Thecla betulae (Linnaeus, 1758)
Flight Period and Life Cycle
1 brood per year. Overwinters as egg.
Distribution in Croatia
Missing on the south. Check the included map.
External Morphology Characteristics
In males, the upper side of wings is brown in color. In females, the upper side is brown with a wide orange streak in the postdiscal zone of the forewing. The underside’s marginal zone is golden-brown in color. In the marginal zone of the forewing there is a white streak. Furthermore, in the marginal zone of the hindwing there are two white streaks.
It rarely goes to flowers. It usually stays on bushes or trees with closed wings.
Caterpillar Host Plants
Edges of the woodland. Elevations: 100-1300m.