''Orocrambus tritonellus'' is a moth in the family Crambidae. It was described by Edward Meyrick in 1885. This species is endemic to New Zealand, where it has been recorded in the central and eastern parts of the

South Island The South Island, also officially named , is the larger of the two major islands of New Zealand in surface area, the other being the smaller but more populous North Island. It is bordered to the north by Cook Strait, to the west by the Tasman ...

. This species prefers habitat that consists of subalpine and alpine areas. The wingspan is 18–23 mm. Adults have been recorded on wing from late September to mid-February.

References

Crambinae Moths described in 1885 Moths of New Zealand Endemic fauna of New Zealand Taxa named by Edward Meyrick Endemic moths of New Zealand {{Crambinae-stub