Euclasta gigantalis is a species of moth in the family Crambidae.

[2] It is found in Ethiopia, Kenya, La Réunion and Madagascar.

[3] In 1988 this moth was also released in Australia for biological control of Cryptostegia grandiflora.

[4] The larvae feed on Camptocarpus mauritianus, Cryptostegia grandiflora, Cryptostegia madagascariensis (Apocynaceae) and Clerodendrum heterophyllum (Lamiaceae).

This Pyraustinae-related article is a stub.