|There are four stages in the life-cycle of a butterfly. Unlike many insects, butterflies do not experience a nymph period, but instead go through a pupal stage which lies between the larva and the adult stage.
2. Larva, known as a caterpillar
3. Pupa (chrysalis)
4. Adult butterfly (imago)
Like the beetles, the butterflies and moths belong to a sub-division of the insects called the Endopterygota, in which there are four distinct phases in the life-cycle, namely egg, larva, pupa and adult. The young utilize a totally different food source from that of the adults and as a result there is no competition between them. The disadvantage is that the soft-bodied butterfly caterpillar is very vulnerable to both parasitisation and predation with the result that some very interesting adaptations have evolved to cope with these problems.