Heterocera from the Transvaal. 391 



Anther (Ba menippe, Westw. Barberton {Dr. P. Rendnll). 



tijrrhea, Cram. Pretoria. 



hracfeata, sp. n. Pretoria. 



Gpianisamaia, Klug. Barberton {Dr. P. Rewlall), Pretoria, Lydenburg. 

 Cirina forda, "NVestw. Barberton {Dr. P. Rendall), Pretoria. 



similu, sp. n. Pretoria. 



Heniocha Jlavida, Butl. Pretoria. 

 dyopa, Maass. & Weyni. Pretoria. 



Variation. 



So great is the variation of markings in these raotlis that, 

 had I not po.ssessed a reasonable series, I must have inevitably 

 either failed to identify some of the species, or have been 

 led to describe them as new. This variation consists prin- 

 cipally in the relative position of the transverse fasciae to the 

 anterior wings {Anthercea) and the position of the ocellated 

 spot to the postei'ior wings {Buncea and Anthercea). The 

 first is so strikingly dissimilar that had I not the same varia- 

 tion in two different species, I should have considered it of a 

 specific and not varietal character. It is also probably not a 

 case of seasonal dimorphism. 



Bunoia angasana. 



Saturnia anqasana, Westw. Proc. Zool. Soc. Lend. 1849, p. 52. n. 19 ; 

 Ang. Kaff. 111. t. xxx. fig. 16 (1849). 



This species is not unreasonably considered by Mr. Roth- 

 schild (Nov. Zool. vol. ii. p. 39) to be an aberration of 

 B. caffraria, Stoll. It is, however, in my experience the 

 only form in the Transvaal, where I have never met with 

 B. coffraria, which is common enough in the Cape Colony 

 and Natal. There can be no doubt as to the close alliance 

 of the two species (?), and breeding must decide the point. 

 All my specimens of B. angasana are also larger than 

 B. cnjfraria. In both forms or species (?) the usual position 

 of the ocellated spot on the posterior wings is in more or less 

 connexion with the outer transverse fascia. In one of my 

 specimens of B. angasana the spot holds a discal or central 

 position. 



Gonimbrasia pygela. 



Bunaa pygeJa, Druce, Proc. Zool. Soc. Lond. 1886, p. 409, t. xxxviii. 

 fig.l. 



Mr. Druce's description and figure are evidently taken from 

 a somewhat rubbed specimen. In fresh examples the whole 

 surface of the anterior wings is bright pinkish brown, save 

 the outer margins, which are indistinctly violaceous. The 



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