Rare Ace is a rare and endemic butterfly. Its recent records are only from the higher elevations at
Knuckles range and
Peak Wilderness Sanctuary. However historical records available from
Kalupahana,
Ratnapura and
Haldummulla-Horton Plains road (
Ormiston W., 1924).
Rare Ace is more or less similar to
Ceylon Ace and some authors believes that both are one and same species while
Ceylon Ace found at lower elevations and
Rare Ace is restricted to the higher hills or that they are seasonal forms. The only consistent difference of both is the ground color and the ground color of
Ceylon Ace is dark brown while
Rare Ace is dark purplish brown. The immature stages of both species are also quite similar. Its larva feeds on leaves of
Davidsea attenuata.
