Apterygon okarito is a species of louse belonging to the family Menoponidae. It is an ectoparasite of the Okarito Kiwi. The species was described in 2004 by Ricardo Palma and Roger Price and is similar to other Apterygon species, being only separated by minor differences in morphology. Under the New Zealand Threat Classification System, it is considered to be "Nationally Critical".

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