BUTTERFLIES OF THE GENUS CHAEAXES. 349 



presented the whole of their fine series of Charaxes to the 

 Trustees, including the specimens formerly representing the 

 collections of Messrs. Bates and Druce — thus enriching our 

 already fine collection with numerous types and with specimens 

 of many species new to us. 



"With such rich material, it has been possible to form a much 

 more just estimate of the value of characters formerly held to 

 have a specific value than could otherwise have been formed ; 

 the result being that, in some instances, described types have 

 had to be suuk to the rank of seasonal or varietal phases, whilst 

 in a few cases the evident constancy of certain characteristics in 

 long series has shown that what have hitherto been regarded as 

 varieties have some claim to be considered distinct. 



The collection as it now stands fills three cabinets or sixty 

 cabinet-drawers, and as nearly every African collection which has 

 arrived lately has added to the species of this genus, it seems 

 probable that another ten years will necessitate a further 

 extension. The incorporation of the specimens in the collection 

 of the late Mr. Hewitson will not greatly enrich the general 

 series, so many of his specimens being without localities, that 

 it will be necessary to treat these as duplicates ; all of them are, 

 however, recorded in the present paper. 



Of the 159 described forms which I have permitted to stand as 

 species, 142 are represented in the Museum ; but as several of 

 those included in the larger number may prove upon examination 

 to be merely individual variations of well-known forms, it would 

 be premature to assume that seventeen described species remained 

 to be acquired by us. 



C. odysseus may be the female of C. lacfetinctus, and it is even 

 possible that the diff"ereuces which separate O. Everetti and 

 Standing eri from C. Durnfordi may prove not to be constant to 

 locality. How it is that Drury's C. eudoxus has never reached 

 us from the time when it was figured is indeed a puzzle ; it is 

 hardly possible that it can have been a made-up insect, for no 

 two known species could be so fitted together as to produce it. 



I now proceed to enumerate the whole of the species of 

 Gharaxes at present described, together with descrijDtions of 

 several not previously recorded and a complete catalogue of the 

 whole of the specimens iu the Museum collection — those from 

 the Salvin and Grodman collection being referred to as " from 

 S. & G-. coll." 



