276 RHOPALOCERA AFRICA AUSTRALIS. 



type, as in Var. Aranda (in one specimen the centres are 

 bright silvery-white). Hind-wing : spots larger, more shining, 

 and more conspicuous than in type, being always more or less 

 well-defined by dark edges, those of central row more con- 

 tiguous, forming an interrupted macular streak. 



$ . Not unlike type, but paler (especially near bases) ; 

 orange sometimes very faint. Fore-wing : orange of disc often 

 divided from basal suifusion. Hind-wing : marginal edging 

 represented by a row of spots marking orange. UNDER- 

 SIDE. As in $ . 



Widely different as the two varieties noted are from the typical Pierus, , 

 I find myself unable, after a long investigation of a very numerous series 

 of examples, to regard them as distinct. They are, however, both very 

 marked divergent races of the species. Wallengren thicks the Yar. A (his 

 species Aranda) to be the sarce as Godart's third variety of Evadrus, but 

 the latter's mention of the orange of hind-wing being crossed by a blackish 

 ray, and of the under-side's being "parseme de points et de chevrons d'un 

 blanc-argente, &c.," causes me to believe that Godart's third variety is none 

 other than Z. malagrida, Wlgr. As already observed, some specimens of 

 Z. Thyra show a singular resemblance to Var. A on the upper- side. The 

 $ of Var. B is so widely dissimilar above from the type that I ior some 

 time believed it to be a distinct species, but the gradations, even in this 

 sex, into Piems proper are very complete, a specimen which I took at 

 Knysna having very nearly as much orange as the type specimens ; while 

 the ? s, save for their paleness, differ but little from those of Pierus. I 

 possess a specimen of Piems $ , and another of Var. A $ , which alike 

 vary from the ordinary colouration, the orange of fore-wing being limited to 

 a space before middle and a small discal spot beyond middle, and the costal 

 border of hind-wing being much broader than usual. 



Dry, sandy spots, chiefly in hilly places. 



October (b) April (e). 



Almost invariably settles on the ground, and is very easily captured * 

 The type form, which was very common at Knysna, is very rare near Cape 

 Town, and would seem equally so in British Kaffraria, Mr. D'Urban having 

 met with only a single specimen. The same may be said of Var. A, which, 

 however, was more ftequently taken by Mr. D'Urban, and seems to be 

 common in Kaffraria Proper. Var. B would appear to be the dominant 

 form of the species, being extremely abundant near Cape Town, "common" 

 at King William's Town, and frequent on the Bashee River. I found the 

 latter plentifully at Stellenbosch, but only once took it at Knysna. 



Cape Town. Stellenbosch. Wellington. Knysna. Plet- 

 tenberg Bay. Bashee River, Kaffraria (J. H. Bowker). 

 Coll. Tri. et S. A. Mus. 



King William's Town*. " Near Fort Murray, and between 

 Breakfast Vley and Fort Hare." Coll. W. D'Urban. 



172. Zeritis Thero. 



Papilio Thero, Linn., Syst. Nat., II, p. 787, n. 219. 



Mus. Lud. Ulr. Reg., p. 328, n. 146. 



* J have sometimes taken Var. A on JBruma flowers. 



