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The Bath White (Pontia daplidice/ edusa) is a migratory white butterfly known for its unique green and white patterned hindwings (underside), distinctive black spots on forewings, and a preference for sunny, dry, flowery habitats like dunes and waste ground, feeding larvae on plants like mustard and mignonette, and being easily confused with its close relatives.
Appearance & Identification
Wingspan: Around 45-50mm.
Upperside: White with black spots and markings, especially on forewing apex; females have extra spots.
Underside (Hindwing): The key feature is a mosaic of greenish-yellow (or green/grey) blotches and white veins, providing camouflage.
Distinction: Very similar to the Eastern Bath White (P. edusa); only genital analysis can definitively separate them in some regions.