Host plants:
The larvae feed especially on Fabaceae, but apparently according to literature, also representatives of other families (Lythraceae, Ericaceae, etc.). I found numerous butterflies and eggs in Greece at the Olympic Riviera on Sophora japonica (Fabaceae). This was an isolated tree in a hotel facility.
Habitat:
Leptodes pirithous inhabits various habitats like open land, wetlands, groups of trees with Fabaceae, dry riverbeds with ruderal vegetation, and agricultural land.
Life cycle:
Leptodes pirithous is a polyvoltine species that can be found in Europe approximately from March to October (further south all year round). Apparently, the larvae are unable to perform a diapause.
Endangerment factors:
Little endangered
Remarks:
This species is more sensitive to cold than Lampides boeticus and reaches Central Europe only very exceptional. It occurs from North Africa and a few Atlantic Islands to India. In Europe it is found only in the southernmost areas on the Mediterranean coast, but is migrating a bit further north.