1885.] L. dc Nicovillo — List of the BnttcrjUes of Calcutta, 41 



in a garden at Ballygunj ; all these specimens, except the last, were taken 

 in the Sealdah district. This species is exceedingly common in some 

 localities, Rangoon for instance ; its rarity in Calcutta is a strange 

 circumstance. 



7. EuPLCEA (Crastia) CORE, Cramer. 



A very common species occurring at all seasons. 



8. EuPL(EA (Pademma) kollari, Felder. 



By no means a rare species, and occurs in company with the pre- 

 ceding. Both species have a very strong but not actually disagreeable 

 odour, which neither my friends nor I are able to compare with any named 

 scent. The males of both species may often be observed patrolling a 

 small aerial space with the end of the abdomen curled under the body 

 towards the thorax, and with the two beautiful yellow anal tufts of long 

 hair distended to their fullest extent at right angles to the body. It 

 seems very probable that these tufts or brushes of hair are used like 

 holy- water sprinklers (aspergilli) for disseminating the scent with which 

 their bodies are charged as an attraction for the females or to warn off: 

 their enemies ; but it should be observed that the females are similarly 

 odoi'iferous, though they are unfurnished with the male disseminating 

 organs. 



Mr. Moore in one of his tables* of " Mimetic species of Uuplceincs 

 [= Danaincd'] (Group B)" gives these two species, with another that 

 does not occur in the Calcutta district, as mimics. As far as these 

 two species go at any rate, I do not think he is justified in surmising 

 that one mimics the other. In the first place, as both are strong-scented, 

 and, as far as my olfactory nerves show, have the same scent, it seems 

 impossible to say Avhich is the model and which the mimic, though 

 E. core is the commoner species of the two. Again, for the same reason 

 both would be equally distasteful to their enemies. On the wing I can 

 generally distinguish the males of E. hollar i from E. core ; it is 

 impossible, however, to distinguish between the opposite sexes of 

 either of the two species when flying. 



Subfamily Satyrinj:. 



9. Mycalesis (Orsotrijsna) medus, Fabricius. 



Occurs somewhat sparsely during the rains, not met with in the 

 winter or hot weather. 



10. Mycalesis (Orsotri^na) runeka, Moore. 



As above, but met with only in the cold and dry weather. I think 

 it will hereafter be proved by breeding that these two supposed species 

 are but seasonal forms of one species. For some reason at present un- 

 * Proo. Zool. Soc. Loud. 1883, p. 209. 



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