(Bergsträsser, 1779)
Reverdin's Blue
Description:
Reverdin's Blue can be found on poor grassland in places ranging from dry to moist at the edges of woodland or scrub.
Eggs are laid on Crown Vetch (Coronilla varia) and Milk-vetch (Astragalus glycyphyllos). The female mostly chooses a woody part of the plant, where the egg may hibernate. The small caterpillars feed on the young leaves. They are attended by Lasius and Myrmica ants, and pupate deep down in the vegetation.
Except in Scandinavia where it is single-brooded, the Reverdin's Blue has two generations a year.
Habitat:
Dry siliceous grasslands
Dry calcareous grasslands
Mesophile grasslands
Similar species:
Plebeius argus
Plebeius idas
Plebeius pylaon
Polyommatus escheri