Pasiphila halianthes is a moth of the family Geometridae. It was first described by Edward Meyrick in 1907. This species is endemic to New Zealand and has been observed in both the North and South Island. It inhabits the upper edges of native forest on mountainsides. Larvae feed on the shoots and leaves of shrubs. Adults are variable in appearance but are regarded as being large in comparison to other species in this genus. They on the wing from November until April.

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