1891.] FROM SOXTTH-WESTERN AFRICA. 75 



type, and all want (on both surfaces) the conspicuous white centre 

 of the second and third fuscous spots in the discal row of the fore 

 wings \ and (on the upperside) the paler cloud in the middle of the 

 hind wings. In the females the dark underside markings are (with 

 the exception of the common median streak) obsolescent'. 



In the Hewitson Collection specimens are recorded also from 

 Lake Nyassa. 



21. Precis octavia (Cram.). 



Papilio octavia. Cram. Pap. Exot. ii. t. cxxxv. fF. B, C (1777). 



Otiembora (November-December) and Okavango River 

 (December). Two examples ; male and female. 



These specimens are of the southern form (which is larger and 

 brighter in colour than the West-African type-form), and the male, 

 though smaller than usual, is of unusual depth and richness of hue, 

 especially on the underside. 



22. Precis sesamus, Trim. 



Precis sesamus, Trim. Trans. Ent. Soc. Lond. 1883, p. 347 ; 

 S.-Afr. Butt. i. p. 231, pi. 4. f. 3 (1887). 



Ehanda (August-September) and Omrora (November). Two 

 male examples. 



Both are much broken ; they are smaller than usual, and the 

 Omrora specimen exhibits alliance with P. amestris (Drury) in the 

 discal red band, which is more sinuate and macular on the upperside 

 and better indicated on the underside than in ordinary P. sesamus. 



23. Precis pelasgis (Godart). 



Vanessa pelasgis, Godt. Enc. Meth. ix. Suppl. p. 820. n. 38,39 

 (1819). 



Okavango River (December). One male example. 



The only specimen is rather small, but richly coloured. On the 

 upperside the common pale ochreous discal band is rather narrower, 

 and the discocellular reddish and bluish strise are better developed 

 than usual. On the underside the band is not so white, more 

 creamy ; and the position of the upper part of the discocellular 

 reddish stria of the upperside is indicated by a small but rather 

 conspicuous violaceous-white mark. 



24. Precis artaxia (Hewits.). 



Junonia ai^taxia, Hewits. Exot. Butt. iii. p. 2G, pi. 13. f. G 

 (1864). 



Ehanda (August-September). One male example. 



^ In a female from Mashuna-land, however, these white centres are well- 

 marked. 



^ Precis petersii, Dewitz (K. Leop. -Carol. Deutsch. Akad. Naturf. xli. p. 192, 



. t. XXV. f. 14, 1879), founded on a single specimen collected by Pogge in Angoln 



(lat. 10° S.), is almost certainly a slight variety of P. cuama, in which tlie 



dusky basal markings of the upperside are ratber more developed, and the 



discal band of the underside is conspicuously paler. 



