194 LEPIDOPTEBA INDICA. 



liindwards, anal spots as in the male, terminal line black, with an inner white thread. 

 Underside as in the male. 



Expanse of wings, $ l^, ^ IfV to l-j^ inches. 



Habitat. — Burma, Malay Peninsula, Borneo, Sumatra, Celebes. 



Distribution. — We have it from Perak, Singapore, Lawas in Borneo, and from 

 Sumatra. Doherty records it from Tenasserim ; it is in the B. M. also from Celebes. 



INDO-MALAYAN ALLIED SPECIES. 



Marmessus ravindra, Myrina ravindra, Horsfield, Cat. Lep. E.I.C. p. 117 (1829). Thecla ravindra, 

 Horsfield and Moore, Cat. Lep. Mus. E.I.C. pi. 5, figs. 11, 11a (1859). Habitat, Java, Sumatra, 

 Borneo. 



Marmessus niasica, Sithon niasica, Rober, Iris, 188G, pi. 68, pi. 5, fig. 20. Habitat, Nias. 



Marmessus caesaria, Drupadia cfesaria, Weymer, Stett. Ent. Zeit. xlviii. p. 9, pi. 2, fig. 4 (1887). 

 Synonym, Sithon niasica, Staudinger, Iris, 1889, p. 109. Habitat, Nias, Philippines. 



Marmessus ravindrina, Sithon ravindrina, Staudinger, I.e. p. 108 (1889). Habitat, Philippines. 



Marmessus onycMna, Sithon onyx, var. onychina, Staudinger, I.e. p. 113. Habitat, Java. 



Marmessus albula, Marmessus surindra, var. albula, H. H. Druce, Proc. Zool. Soc. 1895, p. 617. 

 Habitat, Borneo. 



Marmessus surindra, H. H. Druce, I.e. pi. 34, fig. 7. Habitat, Borneo. 



Marmessus atra, Marmessus boisduvali, var. atra, H. H. Druce, Proc. Zool. Soc. 1896, p. 679. 

 Habitat, Borneo. 



Marmessus comla, nov. Male. Upperside. Forewing, the base up to near the orange patch greyish- 

 blue, the orange-red patch oblique, nearly oval, very large, its upper end starting from inside 

 the end of the cell, the rest of the wing black, the black colour running down the costa narrowly 

 to the base. Cilia black. Sindwing blue-grey, costal area whitish, the lower part of the wing 

 palest, terminal line black, with an inner white thread, some indistinct blackish sub-terminal 

 lunular marks, vein 7 black ; tails black, tipped with white, the middle tail not more than half 

 the usual length. Underside. Forewing brown, almost blackish-brown, sufi'used with orange- 

 red in parts, hinder marginal space narrowly white, base of the wing narrowly whitish, the 

 space above the white hinder margin broadly smeared with black, a black basal streak, a bar in 

 the middle of the cell, and another at the end, a post-medial, narrow, blackish band, another 

 post-discal. Cilia black. Sindwing pure white, spots and bands much as in M. ravindra, but 

 the blue metallic scales above the anal spots are replaced with a little blackish sufl'usion and all 

 the markings are large, very black and prominent. Female. Upperside. Forewing blackish- 

 brown, base faintly suft'used with blue-grey, a narrow orange-red patch like an oblique streak in 

 the middle of the disc. Hindwing with the basal and costal spaces blackish, the rest of the 

 wing pale blue-grey, somewhat whitish, with a blue-grey tint ; tails and marks as in the male. 

 Underside. Forewing bright orange, or orange-red, the hinder marginal space whitish. Hindwing 

 white, markings on both wings as in the male, the discal bands of the forewing more outwardly 

 curved. Expanse of wings, ^ 9 l-^^ to IJ inches. Habitat, Sumatra. Types in B. M., one 

 male and three females. Only superficially distinguishable from Biduanda esla, Swinhoe, by 

 its short middle tail, but is a true Marmessus, with only two sub-costal nervules in the forewing. 



