Ataenius punctatohirsutus is a species of beetle of the family Scarabaeidae. It is found in Argentina.
Description Adults reach a length of about . They have an elongate-oblong, moderately shiny, partially setaceous, dark castaneous to piceous body, with the legs reddish.
Life history Specimens have been collected in abandoned nests of birds occupied by field mouses, and also collected with Triatoma platensis.
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