Melanargia lachesis, the Iberian marbled white, is a butterfly species belonging to the family Nymphalidae.

Hindwing entirely white, apart from the interrupted submarginal band; the base very sparingly dusted, the markings of the underside however shine through in the male.

– The specimens with creamy yellow ground-colour, which are somewhat rarer than the chalky white canigulensis Obth.

[2] The butterflies fly in one generation from June to August.They occur from the plain to about 1,600 meters above sea level.

They prefer dry, flowering, natural meadows that can also be overgrown with bushes.