Cryptophasa nigricincta is a moth in the Xyloryctidae family. It was described by Turner in 1898. It is found in Australia, where it has been recorded from Queensland. The wingspan is 25-30 mm for males and 40-45 mm for females. The forewings of the males are dark slate-coloured and with a large black dot in the disc at beyond one-third, and two placed transversely in the disc at two-fifths. There is a row of black dots along the hindmargin and the apical one-fourth of the costa. The hindwings are blackish. Females have clear white forewings with a black dot in the disc beyond one-third, and two in the disc at three-fifths placed transversely, the lower rather posterior. There is a series of black dots along the hindmargin and the apical one-third of the costa. The hindwings are white, som