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Show 668 MR. A. G. B U T L E R ON [P' 16. LYC^ENA SANGRA. Polyommatus sangra, Moore, P. Z. S. 1865, p. 772, pl. xii. fig. 8. A pair. 17- LYCANA INDICA. 3 2-Lyceena indica, Murray, Trans. Ent. Soc. 1874, p. 525, pl. x. figs. 2, 3. 5 . Two faded specimens. PAPILIONID.E. 18. DELIAS LUZONIENSIS. Pieris luzoniensis, Felder, Wien. ent. Monatschr. vi. p. 285 (1862). A fairly good male of this beautiful species. 19. NYCHITONA NIOBE. Pontia niobe, Wallace, P. Z. S. 1866, p. 357. One male. 20. TERIAS HECABE. Papilio hecabe, Linnaeus, Mus. Lud. Ulr. p. 249 (1/64). A rubbed male. 21. TERIAS HOBSONI, sp. n. 3. Citron-yellow: primaries above with a slender chocolate-brown costal margin, a broad external chocolate border nearly as in T. hecabe, its apical portion broadest, the inner edge excised and forming an angle at the fifth subcostal branch, it terminates in an acute angle on the third median branch, below which the border is very deeply bisinuated, at external angle it is distinctly wider than in T. hecabe; secondaries with a narrow diffused squamose brown border. Wings below rather paler than above, with elongated spots outlined in brown at the end of each cell; veins terminating in blackish dots ; primaries with a dot in the cell, and a few scattered brownish scales on the disk ; secondaries with a few scattered brown scales indicating the ordinary markings on the disk, but very indistinctly. Expanse of wings 1 inch 8i lines. 2 • Larger than the male, lemon-yellow, with similar brown borders to the primaries ; secondaries, in Mr. Hobson's example, immaculate, but usually with squamose border as in the male: wings below with the discocellular markings and marginal dots as in the male, the scattered brown discal scales absent in Mr. Hobson's example, but usually present. Expanse of wings 2 inches. One female. Mr. Moore, however, has three or four specimens from Formosa of both sexes. 22. TERIAS UNDULIGERA, sp. n. 3 • Bright citron-yellow. Primaries with slender dark chocolate-brown costal margin ; outer border nearly as broad as in T. hecabe, but the apical portion not angulated but obliquely inarched and |