Titanomis is a genus of moth containing the single species Titanomis sisyrota, the Frosted Phoenix, which is only known from New Zealand. It is an extremely rare species with only 10 reliable records. Furthermore, taxonomists have difficulty placing it within an existing superfamily. Although the species is thought to be endemic to New Zealand, it might also be a sporadic immigrant. It is a large species, with a wingspan of about 60 mm. The forewings are dark brown with dark streaks on the veins and a whitish border. The hindwings are shaggy.