Rhagoba octomaculalis is a moth in the family Crambidae.

It is found in India (Sikkim, Darjeeling, Arunachal Pradesh).

[1] Adults are dark fuliginous black, with the base of the forewings metallic blue.

In some specimens, each wing is marked with two transparent white spots, while in others only with one, and in still others the spot of the hindwings is also missing.

This Margaroniini-related article is a stub.