THE ANNALS AND MAGAZINE OF NATURAL HISTORY. [EIGHTH SERIES.] No. 46. OCTOBER 1911. LV. — Descriptions of new Genera and Species of Syntomidae, Arctiadoe, Agaristidse, and Noctuidae. By Sir George F. Hampson, Bart., F.Z.S. The following paper forms a sixth supplement to the first ten volumes of the ' Catalogue of Lepidoptera Phalsenae in the British Museum/ the former papers having appeared in the Ann. & Mag. Nat. Hist. ser. 7, vol. viii. pp. 165-186 (1901), vol. xi. pp. 337-351 (1903), vol. xv. pp. 425-453 (1905), vol. xix. pp. 221-357 (1907), and ser. 8, vol. iv. pp. 344-388 (1909). The numbers before the species indicate their position in the classification adopted in those volumes. The types are in the British Museum. SyntomidsB. 81 a. Syntomis leucozona, sp. n, ? . Head, thorax, and abdomen black-brown with a slight bluish gloss ; frons white ; shoulders and pectus with white spots; abdomen with subdorsal white spots on first segment, lateral spots on second segment, and dorsal band on fourth segment. Fore wing black-brown with a faint bluish gloss ; a triangular semihyaline white spot below middle of cell and postmediai spots below veins 7, 5, 4. Hind wing black-brown with a faint bluish gloss ; a round semihyaline white Ann. (& Mag. N. IlisL Ser. 8. Vol viii. 27