NEW INDO-MALAYAN BUTTERFLIES. 323 



a narrow whitish streak below the costa ; the outer margin is broadly 

 black, with its inner edge festooned. Hindwlng with the dusky 

 basal area crossed by two straight dark lines ; a broad discal black 

 band touching the costa but not quite reaching the abdominal 

 margin, broadest in the middle, narrowing towards both ends ; the 

 outer margin broadly black, bearing a slightly paler line. Under- 

 side, hoth tvings precisely as in H. crito, nilhi* from Bhutan, but all 

 the black bands narrower, the white ground being consequently 

 more extensive. Female differs from the male only in its slightly 

 broader and more rounded wings. 



Nearest to R. crito, from which it may be known at a glance by 

 the greater extent of the white ground-colour on the upperside of 

 both wings, that character will also separate it from R. crisilda 

 Hewitson, equally well, which from the figure I judge the type 

 specimen to be taken from a female, and it differs markedly 

 from the same sex of R. critolam in having on the upperside of both 

 wings the outer discal black band (which on the underside bears the 

 ocelli) twice as broad, thus considerably reducing the white area on 

 each side of it. R. latifasciata, Leech, t from Moupin, Western 

 China, is also an allied species, but from the description differs in 

 several details of the markings, and is much larger. 



Major C. T. Bingham and I captured this species inconsiderable 

 numbers in October, 1891, and 1892, in the virgin forests at the 

 foot of the Daunat Range, Middle Tenasserim. The butterfly always 

 keeps in the shade of the great trees, and flies amongst the bushes 

 and brushwood, on which it often settles. Its flight is only equalled 

 in weakness and gentleness by Leptosia xiphia, Fabricius. 



Subfamily Elymniin^. 

 2. DYCTI8 ESACOIDES, n. sp., PL H, Fig. 2, $ . 



Habitat : Perak, Malay Peninsula ; Battak Mountains, Sumatra. 



Expanse : ^,2*6 inches. 



Description: Male. Upperside, hoth wimja very deep indigo- 



* Journ. Bombay Natural History Society, vol. v, p. 199, n, 1, pi. D, figs. 1, malt ; 

 2,/eTnaZe (1890). 

 t The Entomologist, vol. xsiv, Suppl. p. 25 (1891). 



