Differences in search behaviour in larvae of the two Madeiran speckled wood butterflies, Pararge aegeria and Pararge xiphia (Lepidoptera: Satyrinae), implications for interspecific competition?

Abstract

Two species of speckled wood butterfly on Madeira, Pararge aegeria (L., 1758), a recent colonist, and the endemic P. xiphia (F., 1775), may compete for resources during their larval stages. This competition may induce P. aegeria and P. xiphia larvae to di