Peacock Butterfly is one of the most easily recognized and best-known species. The species is widespread and has continued to expand its range in northern parts of Britain and Ireland. Peacock Butterfly has a wingspan of 50 to 55 mm. The base colour of the wings is a rusty red, and at each wingtip it bears a distinctive, black, blue and yellow eyespot. Each with a single, large peacock-feather-like eyespot, used to scare predators. It rests with its wings closed, showing the almost brown or black, well-camouflaged underside.