(Rambur, 1839)
Description:
This blue mostly occurs on dry grassland, waste ground and scrub.
The caterpillars feed on the milk-vetches Astragalus alopecurioides and A. turolensis, and possibly other Astragalus species.
Both the food plants and the butterfly species occur very locally. It is single-brooded and both the caterpillars and chrysalises are attended by ants.
Habitat:
Fallow land and waste places
Dry calcareous grasslands
Similar species:
Plebeius idas
Plebeius argyrognomon
Plebeius pylaon
Polyommatus escheri