Fio. 95. — Arrani 

 in anterior 

 gobrias. 



■■■nuMitof nervules 

 winir-i of Dercas 



Fig. 96. — Arrangement of nervules 

 in anterior wing of Saletara 

 nathalin, J . 



Fig. 07. —.Arrangement of nervules 

 in anterior wing oi Neplieronia 

 hippia. 



dd. 



RHOPALOCERA MALA VANA. 



ee. Third and fourth suhcostal nervules bifurcating 

 almost midway between end of cell and apex 

 of wing. 



/. Discoidal coll about half the length of anterior 

 wings. - - - - - . 



./J. Discoidal cell not half the length of anterior wings. 

 First and second subcostal nervules emitted some 

 distance before end of cell. 



Third and fourth subcostal nervules bifurcating about 

 midway between end of cell and apex of wing. 



Third and fourth subcostal nervules bifurcating near 

 apex of wing. --..... 



C. Anterior wing with five subcostal nervules in male and four 

 in female. 



g(][l. Third and fourth subcostal nervules bifurcating in 

 vuih' at extreme apex of wing. . - . . 

 , Anterior wings with two discoidal nervules. 



C. Anterior wings with four subcostal nervules. 



D. Anterior wings with five subcostal nervules. 



287 



9- 



mi- 



Tkuias. 

 Deucas. 



IxiAS. 

 ApI'IAS. 



Saletaua. * 

 Heromoia. 



NeI'IIKHOMA. 



Genus LEPTOSIA. 



Leptosia, Hiibner, Verz. bek. Scbmett. p. 95 (1816) ; Scudd. Proc. Am. Arts & Sci. vol. x. p. 204, u. G18 (1875). 



Xtjchitona, Butl. Cist. Ent. vol. i. pp. 34, 41 (1870) ; Moore, Lep. Ceyl. vol. i, p. 117 (1881), 



mna, Horsf. Cat. Lep. E. I. C. p. 140 (1829). 



Pontia, Boisd. (nee Fabr.), Spec. Gen. i. p. 430 (1836). 



Anterior wings subpyriform ; costal margin arched and convex ; apex rounded ; outer margin very 

 convex ; inner margin nearly straight, very slightly sinuate. Costal nervure terminating nearly opposite 

 end of cell ; first subcostal nervnle emitted beyond middle of cell, second a little before end of cell, third 

 and fourth bifurcating at about one-third from base of third ; lower disco-cellular nervule inwardly l)ent and 

 angulated, upper minute ; discoidal nervule emitted from near upper apex of cell ; upper median nervule 

 somewhat convex, second and third wide apart. Posterior wings subovate ; costal margin slightly oblique, 

 posterior margin strongly convex, abdominal margin oblique towards anal angle. Costal nervure short, 

 terminating on costa nearly opposite end of cell ; first subcostal nervule emitted beyond middle of cell, curved 

 and extending to apex, second at a short distance before end of cell ; upper disco-cellular directed outwardly, 

 lower more or less inwardly bent and angulated ; position of the discoidal and median nervules as in 

 anterior wing. Body slender ; palpi moderately short, and strongly pilose beneath ; antennte with a long 

 compressed and pointed apical club. 



This is a small but widely distributed genus. It is found in Tropical and Southern Africa, 

 Madagascar, Continental India, and generally throughout the Malay Peninsula and Malayan 

 Archipelago, absent— according to Mr. Wallace f— from the Moluccas and New Guinea, l)ut 

 extending through the islands east of Java to Timor, and thence into North-West Australia. 



Mr. Wallace, who had opportunities of observing the habits of tliese butterflies, has 

 stated that they " fly about slowly in woods and shady places, keeping near the ground, and 

 often settling on leaves and flowers." I 



The fragile butterflies of this genus, which possess a facies distinct from most of the 

 other Picriim, and have a more or less superficial resemblance to the Lycaenad genus JJptcna, 



* Gen. nov. type Pieris nathaUa, Feld. i Trans. Ent. Soc. scr. 3, vol. iv. p. 316 (1867). ', Ibid. 



