Erbessa thiaucourti

Erbessa thiaucourti is a moth of the family Notodontidae. It is found in French Guiana.

The length of the forewings is 14.5–16 mm for males and 19 mm for females. The ground color of the forewings is blackish brown with a violet iridescence. The basal three-quarters Of the hindwings are blackish brown with a turquoise to cobalt blue iridescence, while the distal fourth is blackish brown with a violet iridescence.