Aproaerema isoscelixantha is a moth of the family Gelechiidae. It was described by Oswald Bertram Lower in 1897. It is found in Australia, where it has been recorded from New South Wales.[1]
The wingspan is about 10 mm. The forewings are black, with a yellow triangular spot on costa at five-sixths reaching nearly one-third across the wing. The hindwings are greyish-fuscous.[2]