Apus (bird)
Italian naturalist Giovanni Antonio Scopoli made the genus Apus in 1777. He did it by looking at tautonymy and the common swift. Carl Linnaeus named the common swift Hirundo apus in 1758. The name Apus is Latin for a swift. The word is from Ancient Greek : α, a, "without," and πούς, pous, "foot."  People thought they were swallows without feet.