Definition: An organism at the prepupal stage. The prepupal stage is a life stage interposed between the larval and the pupal stages in insects that undergo a complete metamorphosis. The start of the pre-pupal stage is marked by pupariation, and the end is marked by pupation.
Definition: A distinct juvenile stage many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. [ http://en.wikipedia.org/wiki/Larva ]