Ogyris subterrestris sp. nov. is described with the nominal subspecies O. s. subterrestris ssp. nov. from northwestern Victoria and the subspecies Ogyris subterrestris petrina ssp. nov. from near Kalgoorlie, Western Australia. Adults, male and female genitalia, and first instar larvae are figured and characters to distinguish adults and larvae of Ogyris subterrestris from O. idmo Hewitson are discussed.