[1] This species prefers open spaces in forested clear flowing streams, creeks and rivers.

E. amphicyana seems to tolerate moderate human disturbance as long as vegetations and clear running water is maintained.

Euphaea amphicyana is a Philippine endemic species, native to Samar, Leyte, Panaon, Homonhon, Mindanao, Dinagat and Basilan islands.

Larvae are found among debris in the slow moving portion of the waterways and emergence usually in late morning.

Furthermore, E. amphicyana seems to tolerate moderate human disturbance as long as vegetations and clear running water is maintained.