1887.] LITTLE-KNOWN BUTTERFLIES FROM INDIA. 435 



the length of the margia from the base. In the female, however, 

 the median riervules and submedian nervure are quite normal, the 

 neuration being very similar to that of Melanitis. 



Described from two male examples in the collection of Mr. A. V. 

 Knyvett (after whose wife I have named it), and a female in that of 

 Mr'. Otto Moller. 



EuTHALIA DUDA. 



E. duda, Staudinger, Ex. Schmett. part i. p. 152, pi. liii., male 

 (1886). 



Hah. Near Buxa, Bhutan ; Sikkim. 



Expanse. $ 4*5 inches. 



Female. Upperside : fore wing differs from the same sex of 

 E. durga, Moore, which also occurs in the same locality, in the four 

 white spots between the veins beyond the discoidal cell being much 

 smaller, their inner ends excavated ; the lowest one in the lower 

 discoidal interspace the smallest and most deeply excavated, and 

 shilted outwards, thus breaking the line of the spots ; the four spots 

 from the third median nervule to the inner margin also much smaller, 

 the two lower ones with their outer edges highly diffused instead of 

 ha\ing them sharply defined. Hind wing with the discal white 

 band narrower, its outer edge not defined with a line of the ground- 

 colour as in E. dvrga ; its inner edge much more even ; the diffused 

 fascia immediately beyond it bluish purple instead of green. Un- 

 derside : fore wing with the black increasing submarginal band 

 springing posteriorlv from the two apical white spots twice as wide ; 

 the discal macular band on both tvings as on the upperside. 



A single female of this quite distinct species was obtained by Mr. 

 A. V. Knyvett's native collectors near Buxa. 



Since my description was written, I have received Dr. O. Staudiu- 

 ger's work quoted above ; and from it I learn that he has described 

 this species from two male specimens from Sikkim, collected many 

 years ago by the late W. S. Atkinson. 



Catapcecilma delicatum, n. sp. 



C. bubases, de Niceville (nee Hewitson), Journ. A. S. B. vol. liv. 

 pt. ii. p. 118, pi. ii. figs. 11, male, \, female (1885). 



Through the kindness of Mr. W. L. Distant in sending me an 

 advance copy of the figure of the true C. bubases, Hewitson, which 

 is shortly to appear in the final part of his ' Rhopalocera Malayana,' 

 I am at once enabled to see that Hewitson's description of his species 

 does not apply to the species which occurs in Sikkim, but to which 

 it is somewhat closely allied. "When redescribing and figuring 

 this species I was very uncertain whether or no to give it a name, 

 and wrote: — " Hewitson's description of C. bubases is very meagre ; 

 a comparison of his Malaccan female type with Sikkim specimens 

 may disclose specific differences." This latter conjecture turns out 

 to be a correct one, so I name the Sikkim species C. delicatum. 



