Proteuxoa tetronycha

Species of moth

Proteuxoa tetronycha is a moth of the family Noctuidae. It is endemic, and can be found throughout, New Zealand. This species was previously muddled up with the rarer Proteuxoa comma and is very similar in appearance to that other species. P. tetronycha can be distinguished from P. comma by the paler colour of its prothorax as well as the browner base colour of its forewings. P. tetronycha is also a smaller moth with the wingspan of the adults of this species being between 29 and 33 mm. There are also differences between the females of these two species. For the females of P. tetronycha, their ovipositor is lacking the spiny hair like structures that are present on the ovipositor of P. comma. Larvae likely feed on a variety of host species and have been raised on Acaena species as well as Poa cita. The adults of this species are on the wing from September to March and are attracted to light.

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