Orocrambus heteraulus is a moth in the family Crambidae. It was described by Edward Meyrick in 1905. It is endemic to New Zealand. This species has been recorded to inhabit the Humboldt Range and the Routeburn Valley. The wingspan is 28–35 mm. Adults have been recorded from in December and February. References Crambinae Moths described in 1905 Endemic fauna of New Zealand Moths of New Zealand Taxa named by Edward Meyrick Endemic moths of New Zealand