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. 



