Lewis & Short

1. Tralles, ĭum, f., a town in Lydia, the modern Aidin Guzel-Hissar, Cic. Fl. 24, 57; 29, 71; id. Agr. 2, 15, 39; id. Att. 5, 14, 1; id. Fam. 3, 5, 1; id. Q. Fr. 1, 1, 6, § 17; Caes. B. C. 3, 105, 5; Liv. 37, 45; Juv. 3, 70.
Called also Trallis, Plin. 5, 29, 29, § 108.
Hence, Trallĭānus, a, um, adj., of or belonging to Tralles, Trallian: quasi vero Trallianus fuerit Demosthenes, i. e. a native of Tralles, Cic. Or. 70, 234; cf. id. Phil. 3, 6, 15.
In plur. subst.: Trallĭā-ni, ōrum, m., the inhabitants of Tralles, the Trallians, Cic. Fl. 22, 52 sq.