Sexual dimorphism
Colouring: sexual dimorphism in butterflies is common. Batesian mimicry is often seen only on females, while the males have the typical colours of their type. This is the usual explanation: females, often carrying the precious eggs, get the most benefit from looking like something that predators do not want to eat or by being hard to see at all. Males, which need to be recognised by females before mating takes place, need to be easy to see and recognise.