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oriental fauna by <a process of emigration proceeding from the more northern portions 

 of the American Continent. If the tendency to melanism, which is so apparent in 

 the great majority of South American specimens, is due to climatic and specifically 

 thermal influences, as is probable, the conformity of the specimens from tlie hot 

 tropical regions of the Australian and Indo-malayan regions to the nearctic type 

 reveals that a sufficient length of time has not yet elapsed to bring about the dusky 

 colouration found in specimens coining from the tropical regions of the New World. 



Genus LIMNAS Hiibner. 



(). Limnas petilia (Stoll), Cramer, Pa}). Exot. Snppl. t. 28. f. 3 (1790) ; Moore, 

 Proc. Zool. Soc. Loud. p. 239 (1883). 



Only two specimens of this species are contained in the collection. 



Genus SALATURA Moore. 



T. Salatura philene (Cramer), Pap. Exot. IV. t. 375. f. A. B (1782) ; Moore, 

 Proc. Zool. Soc. LoiuL p. 242 (1883). 



One male and iwo femcdes. 



Genus RAVADEBA Moore. 



8. Ravadeba lutescens (Butler), Proc. Zool. Soc. Lond. p. 172. f. 3 (18G6) ; Moore, 

 Proc. Zool. Soc. Land. p. 245 (1883). 



The species seems to be very common, and I received an enormous series. 

 There is considerable variation in the extent of the light spots in the cell of the 

 primaries, and in some specimens they tend to obsolescence. This is especially true 

 of the males, but less so in the case of the females. The light colour of the u])por 

 surface of the wings is not so bright a yellow as is found in specimens fromBatchian 

 contained in my collection. 



Genus VADEBRA Moore. 



9. V. dohertjri sj). nov. 



(S . The wings on the upperside are deep blaelc shading on the outer margins 

 into warm brown, more particularly upon the secondaries. On the underside the 

 wings are paler, the dark tint being ahnost wholly confined to the region of the 

 cell, and the primaries on the inner margin being pale testaceous, or even white. 

 The primaries are marked by four spots : one in the cell near its end, one just 

 beyond the cell between the third median and the radial nervnles, and two below 

 this in the inner end of the interspaces on either side of the second median nervnle. 

 Of these three spots thus located beyond the end of the cell the lower one is oblong 

 and the largest of the series. They are bluish white in colour. The secondaries 

 have a small roundish spot at the end of the cell, and just beyond the end of the 

 cell a curved series of tive or six oblong spots in the interspaces. There is a 

 double marginal row of spots extending from the outer angle toward the inner 

 angle, which they do not however reach, generally terminating before the first 

 median nervule. The outermost series of these spots shows a marked tendency 

 to obsolescence, and in some specimens is entirely wanting. 



