464 Dr. A. G. Butler A Revision 



52. Teracolus niveus. 



Teracolus niveus, Butler, P. Z. S. 1881, p. 177, pi. xviii. fig. 1. 

 Teracolus candidus, Butler, t. c. p. 178, pi. xviii. fig. 2. 



Socotra. 



T. niveus represents the wet-season phase and T. candidus 

 that of the dry-season ; the latter is less heavily marked than 

 the type, and the orange patch, instead of filling the apex of 

 the primaries, is represented by an oblique pale orange sub- 

 apical band of five spots, widest in the middle and narrowest 

 at its lowest extremity. 



53. Teracolus aldabrensis. 



Teracolus aldabrensis, Holland, Proc. U.S. Nat. Mus. vol. xviii. p. 269, 

 pi. viii. figs. 7, 8 (1895). 



Aldabra. 



This is a very distinct and singularly coloured species. 

 Without seeing the type, I should judge that its nearest 

 relation was probably my T. niveus, from Socotra. It 

 appears to be a wet-season form. 



54. Teracolus evenina. 



Anfhopsyche evenina, Wallengren, Lep. Rhop. Caffr. p. 12 (1857). 

 Anthopsyche deidamia, Wallengren, Wien. ent. Monatschr. iv. p. 35 



(1860). 

 Callosune deidamioides, Aurivillius, Kongl. Svensk. Vet.-Akad. Forh. 



1879, p. 45. 

 Callosune inornata, Westwood, in Oates's Matabeleland, p. 338 (1881). 



Southern Africa as far west as Damaraland, eastwards as 

 far as the Zambesi. 



The seasonal forms of this species differ but little on the 

 upper surface; the dry-season male, however, has slightly 

 less black on the inner margin and on the inner edge of the 

 orange apical patch. C. deidamioides is the dry-season form. 



55. Teracolus casta. 



J . Callosune casta^ Gerstaecker, Arch, fur Nat. 1871, i. p. 357 ; Van 

 der Decken's Reisen in Ost- Africa, iv. 2, p. 365, pi. xv. figs. 1, 1 a 

 (1873). 



J . Teracolus sipylus, Swinhoe, P. Z. S. 1884, p, 444, pi. xl. figs. 10, 11. 



Teracolus callidia, Grose Smith, Ent. Month. Mag. xxiii. p. 32 (1886). 



Ranges from Zanzibar south-westwards to Nyasaland and 

 north-westwards to the Victoria Nyanza. 



The seasonal variation of this species is considerably more 

 marked than in the southern T. evenina ; T. sipylus, the 



