Harmologa festiva is a species of moth of the family Tortricidae. This species was first described by Alfred Philpott in 1915. It is endemic to New Zealand and is found in the South Island including in the Hunter Mountains, near Manapouri and at Te Anau. This species inhabits subalpine habitat with Veronica and other native shrubs present as well as granite sand plains. Adults are on the wing in January.

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