Izatha heroica is a moth of the Oecophoridae family. It is endemic to New Zealand, where it is widespread in the South Island, but mainly in the west. The wingspan is 23–29 mm for males and 27–32 mm for females. Adults have been recorded in January, February and early March. Larvae have been reared from erect dead Leptospermum. The host may have been Kunzea ericoides or Leptospermum scoparium, since both were placed in the Leptospermum genus at this time.