Cryptophasa porphyritis is a moth in the family Xyloryctidae. It was described by Alfred Jefferis Turner in 1906. It is found in Australia,[1] where it has been recorded from Queensland.
The wingspan is about 46 mm. The forewings are pale purple irrorated with reddish-brown, whitish, and a few blackish scales. The costa, from the base to the middle is fuscous and the base from beneath the costa and along the dorsum to one-sixth is broadly white with a blackish discal dot beyond the middle and a triangular white spot on the costa at three-fourths, succeeded by two minute white dots before the apex. There is a subterminal line of blackish dots outlined by reddish-brown and a terminal series of reddish-brown dots. The hindwings are dark fuscous.[2]