Isocentris filalis is a moth of the family Crambidae described by Achille Guenée in 1854. It is found in Cameroon, Comoros, the Democratic Republic of the Congo, Réunion, Madagascar, Mauritius, Togo[1] Indonesia (Java), Myanmar and Taiwan.
Adults are bright yellow.
The larvae feed on Euphorbia virosa and Flueggea virosa.[2]