1882. | 227 



It is to be quite understood that I do not compel any one to 

 believe this, but it is very easy to verify all that I have advanced ; for 

 almost all plants nourish Aphides, and, at least, twenty or thirty species 

 of Gynipidce are abundant on our oaks ; and it is only required to show 

 if I am in error in what it consists. As to the anatomy, I beg to be 

 excused, not knowing anything of it ; but when I see a fact so patent 

 as, for example, that of an insect coming out of a gall, and by its 

 puncture producing, before my eyes, one totally different, whence comes 

 another insect, I can well say that the first is simply a link in the 

 complete evolution of the creature. This system will probably reduce 

 by half the number of species, and, perhaps, of the genera, in the two 

 groups mentioned. This is the business of the Linne of the future, 

 and it will not, perhaps, be a great evil. 



ON THE BUTTERFLIES OF THE G-ENTJS TERACOLUS OCCURRING- 

 AT ACCRA, GOLD COAST. 



BY ARTHUR G. BUTLER, F.L.S., P.Z.S., &C 



In my Revision of the Lepidopterous genus, Teracolus (P. Z. S., 

 1876, pp. 125 — 165), in which 129 species were enumerated, only five 

 were noted as occurring upon the Gold Coast. 



Last year, Mr. E. T. Carter sent us eight examples (four species) 

 from Accra (representing, so far as he then knew, the whole of the 

 species obtainable there) : finding that the greater part of these 

 differed from any specimens which we possessed, he, at my request, 

 very kindly obtained more examples, which he has generously presented 

 to the Museum collection. 



The following is a complete list of the species collected by 

 Mr. Carter. 



1. Teracolus Carteri, sp. n. 



? . Allied to T. Isaura and T. Helle of Abyssinia, and T. Hyperides of S. Africa ; 

 but decidedly larger, altogether more brightly coloured, and with much broader ex- 

 ternal borders than any of these species. 



Wings, above, pale sulphur-yellow, tbe basal area, almost to the middle, suffused 

 with greyish-brown ; a broad, internally dentate-sinuate, blackish-brown external 

 border ; primaries with the apical two-thirds of the costal margin blackish ; a con- 

 spicuous oblique black spot at the end of the cell, and a much larger, but diffused, 

 spot at external third of interno-median area ; apical area, almost to the middle of 

 the wing, vermillion-red, with a slight magenta shot, its outer edge oblique, and with 

 a diffused orange border ; this red area is divided by longitudinal, black-brown 

 stripes upon the veins, and interrupted in the middle by an oblique band, widest 

 upon the costa, and extending to the third median branch ; secondaries with traces 



