Crocanthes diula is a moth in the Lecithoceridae family. It was described by Meyrick in 1904. It is found in Australia, where it has been recorded from Queensland. The wingspan is 11–13 mm. The forewings are bronzy-fuscous, irrorated with dark fuscous and with an oblique whitish-ochreous mark on the costa before the middle. There is a narrow wedge-shaped whitish-ochreous mark along the costa beyond three-fourths. The hindwings are dark bronzy-fuscous.