234 Mr. H. Druce on neio Species of Lepidoptera. Helicina platychila ^ Pfeiffer, Concli.-Cab. p. 24, pi. iv. figs. 22-24, pi. vii. figs. 8, 9. Helicina lutea^ Sowerbj, Thes. Concli. vol. i. p. 6, pi. ii. fig. 59, pi. iii. fig. 142, vol. iii. p. 289, pi. cclxxiv. figs. 310, 311 ; id. Concli. Icon. pi. xi. figs. 87 a, b. Hah. Guadeloupe, Martinique, Cuba ? j Dominica [Browriy Ramage) . 33. Helicina antillarum, Sowerby. Helicina antillarum, Sowerby, Thes. Conch, vol. i. p. 7, pi. ii. figs. 68-70, vol. iii. p. 292, pi. cclxxv. figs. 3.59-361 ; id. Conch. Icon. pi. xx. figs. 176 «, 6; Reeve, Concli. Syst. vol. ii. pi. clxxxvi. fig. 15; Pfeiffer, Conch. -Cab. p. 46, pi. iii. figs. 1-3 ; Crosse, Journ. de Conch. 1874, vol. xxii. p. 203, pi. iv. fig. 6. Hal, Guadeloupe; Dominica [Brown). XXX. — Descriptions of neio Species of Lepidoptera^ chiefly from Central America. By Heebeet DeuCE, F.L.S., F.E.G.S., F.Z.S. The new species of Central-American Heterocera will be figured in the * Biologia Centrali-Americana.' Ehopaloceea. Papilio, Linn. Papilio Langeni^ sp. n. Primaries black, with three indistinct white spots forming a broken band beyond the cell, crossing the wing from near the costal margin towards the outer margin ; secondaries black, with a large central creamy white band, in shape almost the same as in P. albi7ius, Wall. Underside of the primaries black, with the indistinct white spots as above : secondaries uniformly black, with a small orange streak well above the anal angle. In some specimens the white spots on the primaries are almost gone. Expanse 4| inches. Hab. K6 Island (Mus. Druce, Godman and Salvin). This species is allied to P. alhinus, Wallace, from New Guinea ; but it is at once distinguished from that insect by the entirely black underside of the secondaries. I have little doubt that it is peculiar to K6 Island.
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