27i L. de Niceville — New Butterjlies from the Indian liegion. [No, 4> 



marked well-defined groups, which I have designated dry- and wet- 

 season forms respectively. These forms prevail during their respective 

 seasons, but are by no means strictly confined to them. For instance, it 

 is a common occurrence in India to have what is called a " break in the 

 rains," when for many successive days one has weather somewhat similar 

 to that obtaining in the dry-season. Any larvse turning to pupae during 

 a " break " would almost certainly, though they would emerge perhaps a 

 week afterwards in a deluge of rain, be of the dry-season form. Similarly, 

 during the dry-season, dry-season forms prevail, but, should a rainy day 

 or two come, pupgo formed during the wet interval would probably 

 produce the wet- season form of butterfly. Again, as it takes butterflies 

 some little time to lay their eggs (after having completed this operation 

 they die immediately), it must frequently happen that the two forms 

 overlap : a dry-season female not having laid her eggs during the dry 

 season would do so at the beginning of the rains, and, though caught in the 

 rainy season, would still be a dry-season butterfly, its worn appearance, if 

 nothing else, proclaiming the fact ; and vice versa with a wet-season 

 butterfly not having completed her laying during the rains and caught 

 in the dry-season. So it is with 21. malsarida. Mr„ Hamilton obtained 

 a very long series of it in the spring below Shillong in Sylhet : the 

 greater portion were, as they should have been, of the dry-season form, 

 but a few were of the other extreme, and these he picked out, together 

 with intergrade specimens between the two extremes, and sent to me. The 

 prevailing form of this species is therefore M. hliasiana in the dry-season 

 and true M. malsarida in the wet-season, and the occasional appearance of 

 the one form or the other out of its proper season will not upset the main 

 fact of the occurrence of two distinct well-marked forms corresponding 

 to the seasons, the dry and the wet, into which the Indian climate may 

 be primarily divided. 



Mr. Moore's subgenus Kahanda contains therefore a single species 

 only, so far as is at present known, and adds one more to the groups 

 of Mycalesis in which seasonal dimorphism occurs, as given by Mr. W. 

 Doherty in vol. Iv, pt. ii, of this Journal, p. 106. 



M. malsarida may be considered to be a rare species, as it appears 

 to be strictly confined to Assam, though it is probably common enough 

 in the spots where it is found at all. 



Subfamily Nymph alin^. 

 2. ZoPHOESSA EAMADEVA, dc Niceville, PI. XIII, Fig. 3, (^ . 

 Z. ramadeva, de Niceville, P. A. S. B. 1887, p. 147. 



I take this opportunity to figure this very pretty and distinct 

 species. It lacks (as also does Z. andersoni, Atkinson) the glandular 



