The Nymphalidae is a family of about 5,000 species of butterflies which are distributed throughout most of the world. These are usually medium sized to large butterflies. Most species have a reduced pair of forelegs and many hold their colourful wings flat when resting. They are also called brush-footed butterflies or four-footed butterflies. Many species are brightly colored and include popular species such as the emperor, admirals, tortoiseshells and fritillaries. However, the underwings are in contrast often dull and in some species look remarkably like dead leaves, or are much paler, producing a cryptic effect that helps the butterfly disappear into its surroundings.
In adult butterflies the first pair of legs are small or reduced, giving the family the other names of four-footed or brush-footed butterflies. The caterpillars are hairy or spiky with projections on the head, and the chrysalids have shiny spots. This small, active butterfly can be seen perched on leaves wherever the sun is shining. The hindwing has internal (1a) and precostal veins.The cell in both wings closed or open, often closed in the fore, open in the hindwing.
Source: en.wikipedia.org/wiki/Nymphalidae - 09.10.2010
The originally tiny feelers repeat the 3 colours of the wings and thus potentiate the harmony with this Nymphalidae.