Philaethria dido chocoensis is found only on the western side of the Andes, its range extending from Ecuador to the Chocó region in northwestern Colombia.

[1] This butterfly's flight is fast and direct and it mainly flits through the canopy and along the courses of streams, but it may also be seen in clearings and sunlit glades.

The males normally fly high in the canopy but sometimes descend to sunlit stream sides or gravel beaches besides rivers to sip mineral-rich water.

Females often fly at about 4 m (13 ft) off the ground, dipping down at intervals to inspect potential egg-laying sites on species of passion flower.

The eggs are laid on the under sides of the leaves on species including Passiflora laurifolia, P. vitifolia, P. edulis, and P.