282 MR, H. J. ELWES ON BUTTERFLIES FROM [Apr. 21, 



Athyma ZEROCA. 



A. zeroca, Moore, P. Z. S. 1872, p. 564 ; Butt. Ind. ii. p. 177. 

 Several males from the Karen Hills have the apical white spots 

 larger and better marked than in the Himalayas. 



Athyma cama. 



A. cama, Moore, P. Z. S. 1858, p. 14 ; Butt. Ind. ii. p. 178. 



Two males from the Karen Hills. 



Athyma amhara. 



A. amhara, Drnce, P. Z. S. 1873, p. 344, t. 32. 2; Butt. Ind. 

 ii. p. 181 ; Dist. Rhop. Mai. p. 162, t. xvi. 5 d . 



A pair from Perak. What I take to be the female of A. amhara 

 agrees precisely with the male on the underside, which is by far 

 the safest guide in this group, but on the upperside differs from the 

 female described by Druce and Distant. It is almost exactly like a 

 small female of ^. selenophora, but that species is not known to occur 

 so far south, and the underside is also quite different in colour, being 

 dark grey instead of rufous. 



Symbrenthia niphanda. 



S. niphanda, Moore, P. Z. S. 1872, p. 559 ; Butt. Ind. ii. p. 243. 

 Not common in the Naga Hills, where the specimens are larger 

 than in Sikkim, but otherwise quite similar. 



CyRESTIS NIVEA. 



Amathusia nivea, Zinken-Sommer, Nova Acta, xv. t. xiv. 1 (1831). 



Cyrestis nivea. Butt. Ind. p. ii. 252. 



C. nivalis, Feld. Reise Nov. iii. p. 414. 



Common at Perak. I quite agree with de Nice'ville that the 

 Indian form is not separable from C. nivea, of which I have both 

 Javan and Bornean specimens. 



Cyrestis cocles. 



Pap. cocles, Fabr. Mant. ii. p. 7. 



C. cocles. Butt. Ind. ii. p. 254. 



C.formosa, Feld. Reise Nov. iii. p. 412. 



C. earli, Dist. Ann. Nat. Hist. ser. 5, xi. p. 174 (1883); Rhop. 

 Mai. p. 141, t. xiii. 5. 



Doherty took both C. cocles and C. ectrli at Perak, and a form 

 intermediate between them at Momeit. I quite agree with de Nice- 

 ville that these varieties all belong to one species and are too variable 

 to be separated. 



Cyrestis periander. 



Pap. periander, Fabr. Mant. ii. p. 9. 

 C. periander. Butt. Ind. ii. p. 255. 

 Seems common at Perak. 



