PIEUINAS. 19 



pi. 24, fig. 9, 10, S ? (1885). Dohertj, J. As. Soc. Beng. 1889, p. 121. deNiceville, 

 J. As. Soc. Beng. 1895, p. 500. T. Perakana, Fruhstorfer, Iris, 1902, p. 178. 

 Habitat. Malay Peninsula ; Sumatra ; Borneo. 



Tachjris Bamosa (Catoph. Ramosa, Fruhstorfer, Berl. Ent. Zeit, 1898, p. 328 ; 

 /(/. Deuts. Ent. Zeit. 1902, p. 293. Habitat. Nias Island. 



Tachyris Flavins (Appias Flavins, Grose-Smith, Ann. Nat. Hist. 1892, p. 427, 

 6 ?. Habitat. Taganac Island, N.IO. Borneo. 



Tachyris Hainanensis (Tacli. Hainanensis, Fruhstorfer, Iris, 1 902, p. 178. Hahitat. 

 Hainan Island, Wien. 



Tachyris Domitia (Pieris Domitia, Felder, Ent. Monats. vi. p. 285, (S (1802). 

 Tachyris Domitia, Wallace, Ti-. Ent. Soc. 1867, p. 379. Api)ias Domitin, Semper, 

 Reis. Phil. Lep. p. 244, pi. 40, tig. 1-5, 6 ? (1891). P. Asterope, Felder, I.e. p. 286, 

 ?. Pieris Zamboanga, Feld. /.r. p. 285, ?. Appias Mindanaensis, Butler, Ann. 

 Nat. Hist. 1883, p. 421. HaJntat. Philippines. 



Genus LEPTOSIA. 



Leptosia, Hubner, Verz. l.ck Sclimett. p. 9.5 (1816). Scudder, Proc. Amer. Acail. A. et S. Boston, 1875, 

 p. 204:. Distant, Rliop. Malay, p. 287 (1885). Kirby, Allen's Nat. Libr. Butt. ii. p. 176 (1896). 



Pontia (sub-gen ) Nina, Hor.sBekl, Catal. Lep. Mus. E. I. Company, p. 140 (1829). 



Ponlia, Boisduval, Spec. Gen. Lop. i. p. 430 (1836). Doubleday, Gen. D. Lep. i. p. 40 (1847). 

 Kirby, Syn. Catal. D. Lep. i. p. 439 (1871). Crotch, Cist. Ent. i. p. G6 (IS72). Scbatz, Exot. 

 Schmett. ii. p. 65 (1886). 



Nychitona, Butler, Cistula Entom. i. pp. 34, 41 (1870). Moore, Lep. of Ceylon, i. p. 117 (1881). 



Imago. — Wings very delicate. Forewing subpyriform, apical margin very 

 convex ; costal vein extending two-thirds the margin ; subcostal branches far apart, 

 first branch at one- third before end of the cell, second immediately before the end, 

 third and fourth (or upper radial) on a foot-stalk one-third beyond the cell ; lower 

 radial from upper end of the cell ; discocellular veinlet deeply concave ; cell more 

 than half length of the wing ; middle median at one-eighth and lowei at nearly one- 

 half before end of the cell ; submedian vein recurved. Hinchving triangularly-oval, 

 exterior margin very convex ; precostal vein short ; costal vein arched at the base; 

 first subcostal branch much curved, emitted at one-third before end of the cell ; 

 upper discocellular bent outward near the subcostal, lower outwardly oblique, radial 

 from angle of upper near subcostal ; middle median at one-fourth and lower at one- 

 half before end of the cell ; submedian vein straight, internal recui'ved. Body very 

 slender ; palpi pilose beneath, projecting beyond the head ; antennfe with a long 

 compressed pointed club. 



Larva and Pupa. — " Very like those of Terias Hecabe, but more delicately formed. 



D 2 



