Gonionota ioleuca is a moth in the family Depressariidae. It was described by Edward Meyrick in 1912. It is found in Argentina.[1]
The wingspan is about 19 mm. The forewings are fuscous, sprinkled with dark fuscous and with a pale yellowish basal patch reticulated with ferruginous occupying two-fifths of the wing, including a broad fuscous costal streak, the outer edge curved. the first discal stigma is represented by a round snow-white spot within the edge of the basal patch, the second by a white dot edged with ferruginous. There is a small pale yellowish triangular spot edged with ferruginous on the costa at two-thirds, where a strongly curved series of dots of dark fuscous irroration runs near the margins to the dorsum at two-thirds. The hindwings are ochreous-whitish.[2]