Catanomistis is a genus of moths of the Xyloryctidae family. It contains only one species, Catanomistis loxophracta, which is found in Madagascar. The wingspan is about 14 mm. The forewings are white with the discal stigmata black and with a fine oblique dark grey strigula from the middle of the costa, near beyond it a flattened-triangular dark grey spot, from which an irregular rather oblique streak crosses the second discal stigma and runs to the tornus, a dorsal streak of light grey suffusion from near the base nearly reaches this. The hindwings are light grey, thinly sprinkled dark grey.