Lewis & Short

Ărĭmaspi, ōrum, m., = Ἀριμασποί, a Scythian people in the north of Europe, Mel. 2, 1; Plin. 7, 2, 2, § 10; Gell. 9, 4, 6; sing., Luc. 7, 756; cf. Mann. Nord. pp. 143, 275.