Lime Blue (Chilades lajus lajus)

Common butterfly found in all elevations of the island throughout the year, while abundant during the north-east monsoons. Lime Blue is a migratory species. It is subject to some seasonal variation and in both sexes the dry season and wet season forms vary in size and in the shade of blue on the upper side of both wings. Larva attended by Red Ants and feeds on tender leaves of  Atalantia ceylanica (වල් දෙහි/යකිනාරන්/‍යක් දෙහි), Atalantia monophylla, Limonia acidissima (දිවුල්/Wood Apple/Elephant Apple), Citrus aurantiifolia (දෙහි/True Lime/Lime) and Citrus sinensis of the family Rutaceae.