Acanthopteroctetidae is a small family of moths with two described genera, Acanthopteroctetes and Catapterix, a total of seven described species, and two undescribed species. They are known as the archaic sun moths.

The Acanthopteroctetidae have been classified as the sole family in the superfamily Acanthopteroctetoidea and the infraorder Acanthoctesia; however, based on molecular phylogenetic evidence, they may instead be classified in the superfamily Neopseustoidea, together with the Neopseustidae and Aenigmatineidae.

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