Epiphthora leptoconia is a moth of the Gelechiidae family. It was described by Turner in 1919. It is found in Australia, where it has been recorded from New South Wales. The wingspan is about 13 mm. The forewings are whitish sparsely irrorated with fuscous and sometimes with dots beneath the fold at one-sixth, one-third and the tornus, but these are not always defined. The hindwings are whitish-grey.