imperfectly -hnoion South African Lepidoptera. 389 



Butt." (iii, p. 290, 1889) because it was described as 

 nearest to P. sataspcs, mild, a common South African 

 species. In 1897 (Proc. Zool. Soc. Lond. p. 856) Dr. 

 Butler noted the interesting fact that Mr. G. x\. K. Mar- 

 shall had taken specimens of P. zebra on the River Tugela 

 in Natal in November 1896, and remarked, " These Natal 

 examples cannot be distinguished from those of N.W. 

 India, excepting in their slightly blacker ground-colour 

 (which, by the way, is probably due to the superior fresh- 

 ness of the specimens)." It is also from Weenen, in Natal, 

 that Mr. H. L. Feltham's specimen, which I here figure, 

 was obtained. 



I have compared this example with three others, in the 

 Hope Department of the Oxford University Museum, which 

 appear to be referable to the same species, and which 

 were taken in N.E. Rhodesia (2) and Makanga, Tette (1), 

 by Mr. S. A. Neave early in 1908. The Weenen example 

 differs in being considerably smaller, and in having on the 

 upperside the three median white spots of the fore wing 

 distinct instead of faint, and the median white baud of the 

 hindwing more even and continuous. Mr. Neave (Proc. 

 Zool. Soc. Lond., 1910, p. 93) notes that the few individuals 

 from Fort Jameson and the Luangwa Valley in Rhodesia 

 are "considerably larger than Mashonaland specimens in 

 the National Collection, which are in their turn larger 

 than the type from India." P. zebra is not closely allied 

 to P. sataspes, mihi, but comes nearest to the East African 

 P. diomus, Hopff., especially in the conspicuous feature of 

 an additional outer narrow white stripe from apex to near 

 anal angle on the underside of the hindwings. 



Pyrgus secessus, Trim. 



Pyrgus secessus, Trim., Proc. Zool. Soc. Lond., 1891, p. 102, 

 pi. ix, f. 22 {$). 



Plate XVII, figs. 6 {$), 7 ($). 



Since I described and figured {I.e.) this Pyrgus from two 

 examples taken by A. W. Eriksson at Omrora, S.W. Africa 

 (about 1,5° 15' S. Lat.), it does not seem to have been 

 much noticed till Mr. S. A. Neave (Proc. Zool. Soc. Lond., 

 1910, p. 73) recorded it as not uncommon in N.E. 

 Rhodesia, especially in the Lake Bangweolo District. But 

 Mr. G. A. K. Marshall met with it near Salisbury and in 



