392 Dr. A. G. Butler o)i the Pierine Butlerjlies XLIV. — On the Pierine Butterflies of the Genus Catopliaga. By Aethur G. Butler, Ph.D.,' F.L.S., F.Z.S., &c. When Wallace described his extensive genus Tachyris, based chiefly upon the tuft at the base of the claspers in the males, he seems to have been unaware that Hiibner had already proposed three generic names, viz. ^-^yj^ms, Catophaga^ and Hiposcritia (recte Hy poser itia) for species having this secondary sexual character. I find that Appias (type A. zehnira) is undoubtedly gene-rically distinct, the club of the antennae being broadly spoon-shaped and flattened ; but I see no reason for regarding Catophaga, Hiposcritia^ and Tachyris (restricted) as more than groups of one genus, differing chiefly in outline of wing and style of coloration. In the case of Saletara the structural difierence in neuration is inconstant, and consequently only of subgeneric value ; I therefore regard this also as a group, though perhaps a little better defined tlian the others. Group J. Hyposcritia, Iliibn. The species of this group have the apex of the primaries usually more or less falcate ; the males of the wet-season phase are either cream-coloured or ochraceous on the under surface of the secondaries, rarely (perhaps never) heavily speckled or striated ; whereas the dry-season phase of the male more or less resembles a dead leaf in tint on the under surface. Type of the group H. pandione. 1. Hyposcritia indra. Pieris indra, Moore, Cat. Lep. E. I. C. i. p. 74 (1857) ; P. Z. S. 1857, p. 103, pi. xliv. fig. 5. Appias mahana, jNloore, Ann. & Mag. Nat. Hist. ser. 4, vol. xx. p. 48 (1877). Appias iynbecilis, Moore, Journ. As. Soc. Beng. liii. p. 46 (1884). Tachyris indigis, Wevmer, Stett. ent. Zeit. 1886, pi. i. fig. 3, 1887, p. h. N.E. India and Burma. ? , type, B. M. We have one male labelled " Celebes," but I believe this to be an error; it was received from the Godman and Salvin collection (ex coll. Druce). H. indra is the wet-season phase, H. mahona dry, H. imhecilis-= indigis an extreme dry phase.
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