52 MR. W. C. HEWITSON ON NEW BUTTERFLIES. [Feb. 12, 



margin darker browu, with, near the middle of the outer margin, a 

 large oval orange spot marked with two black ocelli, each with a 

 centre of blue. 



Underside as above, except that the bases of both wings, the ab- 

 dominal fold, and the outer half of the posterior wing are dark 

 browu ; that the large orange spot is (in some examples only) ex- 

 tended towards the apex, so as to contain a miaute ocellus ; that the 

 two ocelli are so enlarged as to meet in the middle ; and that there 

 is a large ocellus at the apex bordered with orange. 



The female does not differ, except that it is much larger, with 

 greater proportionate breadth of wing. 

 Exp. S 3 1^0. $ 4t>\ inches. 

 Hab. Batchian. 



In the collections of A. R. Wallace and W. C. Hewitson. 

 This can scarcely be anothervariety of a most variable species. I fully 

 believe that there is as yet but one other species of the genus Brusilla, 

 and that all the butterflies hitherto described and figured, to which 

 I have given references below, are only varieties of Drusilla urania. 

 I believe that D. horsfieldii of Swainsoia is simply a male variety 

 of -D. tirania; that D. catops and D. selene of Boisduval's MS., 

 described by Westwood in the ' Genera of Diurnal Lepidoptera,' 

 page 3:^5 = D. phorcas and D. mylcecha of Westwood in the Trans- 

 actions of the Entomological Society, n. s. vol. iv. p. 182, pi. 21 

 =D. mi/ops and D. macrops of Dr. Fcldfer in the ' Wiener Entom. 

 Monatschrift,' vol. iv. pp. 109, 248, and pi. 1 = 1). artemis, D. una- 

 bleps, andD. dioptica of Vollenhoven in the ' Nederlandsche Entom. 

 Vereeniging,' are all referable to one species. They differ from each 

 other (just as the butterflies do which I have figured, in a former 

 Plate of these Proceedings, under the name of Melanitis melane) in 

 the position and quantity of the white on the surface, in the size and 

 perfection of the ocelli, and their distance from the outer margin. 

 Each genus seems to mimic the other in its general appearance, and 

 each runs into the same extravagant varieties. If the butterflies 

 which are enumerated above are to be considered as good species, 

 there are several more in the collection of Mr. Wallace waiting for 

 the same distinction. One lately arrived from Ceram has the whole 

 imderside of a uniform dark brown. 



Melanitis mimalon. (PI. IX. figs. 1, 2.) 



Alls omnibus purpureis, marginibiis griseis ; subtus brunneis ubique 

 yriseo undulatis, posticis macula alba prope medium marginis 

 costalis. 



Upperside, male : purple, with a submarginal band of grey ; the 

 margins dentate and spotted with white. 



Underside dark brown, undulated throughout with grey. Posterior 

 wing with two minute spots near the base, a round spot near the 

 middle of the costal margin, and some minute spots parallel to the 

 outer margin, all white. 



Exp. 3f^^ inches. 



Hab. Manado, Celebes. 



In the collection of A. R. Wallace. 



