Crocanthes thiomorpha is a moth in the Lecithoceridae family. It was described by Turner in 1933. It is found in Australia, where it has been recorded from Queensland. The wingspan is 15-17 mm. The forewings are pale yellow, sometimes with a small fuscous basal fascia. The terminal area, bounded by a straight line from two-fifths the costa to the mid-dorsum is pale fuscous, but this may be more or less suffused with pale yellow on the costa and before the termen. The hindwings are pale grey.