62 MR. R. TRIMEN ON BUTTERFLIES [Jan. 20, 



— especially on the hind wing, where the dark vermiculated striola- 

 tion is less developed, and only the median brownish stria apparent. 

 The ocellus of the fore wing varies much in form and size, and the 

 same is the case as regards the ocelli of the hind wing, which also in 

 number vary on the upperside from one to three, and on the under- 

 side from two to five (some or all of these latter being often minute, 

 or even reduced to scarcely perceptible fuscous dots). There can, 

 1 think, be no doubt that the specimens under notice constitute a 

 variation identical with Y. granulosa, Butl. (Ann. & Mag. Nat. Hist. 

 5th series, xii. p. 101, 1883), from Victoria Nyanza. 



Genus Pseudonympha, Wallengr. 

 3. Pseudonympha bera (Hewits.). 



Yphthima bera, Hewits. Ent. M. Mag. xiv. p. 107 (1877). 



Neocoenyra ' duplex, Butl. Proc. Zool. Soc. 1885, p. 758. 



Okavango River, between Omaramba-Carongo and Omaramba- 

 Matako (December) : Omaramba-Matako (January). 



Fourteen examples (nine S , five $ ) were taken on the Oka- 

 vango, and one $ on its tributary the Omaramba Matako. 



I have referred to this Pseudonympha in ' South-African Butter- 

 flies ' (vol. i. p. 82 note, and vol. iii. p. 395), mentioning its 

 relationship to P. natalii, Boisd., and its distinguishing features. 

 Mr. Eriksson's specimens differ a little from those taken by Mr. 

 Selous on the Shashani River, in Matabele-land, in the size and 

 form of the subapical pale rufous patch of the fore wing, which in 

 both sexes is less extended inferiorly (in male not far below second 

 median nervule, and in female attaining first median uervule in one 

 example only), more rounded inwardly, and externally much more 

 sharply indented by the dark edging hue near its lower extremity. 

 In the female examples the smaller patch in the hind wing is also 

 less developed about the ocelli. 



Besides its close alliance with P. natalii, Boisd., this butterfly is 

 also nearly related to P. neita, Wallengr. (see ' South- African 

 Butterflies,' i. p. 79, pi. 7. f. 2), but easily recognized by its deeper 

 basal and paler hind-marginal colouring, the ferruginous outer ring 

 of the iris of the ocelli, the totally difi^erent shape and external dark 

 edging of the pale rufous subapical patch of the fore wing, and the 

 dark submarginal streak in the hind wing, as well as that close to 

 hind-marginal edge in both wings. On the underside, also, Y. bera 

 exhibits in the hind wing two well-marked (subbasal and median) 

 dark strise wholly wanting in Y. neita, and very much more developed 

 subbasal ferruginous-rufous marks on costa and inner margin. 



^ I am of opinion that this genus cannot be adopted, all the characters given 

 as distinctive by the founder — while they separate it from Cofwyra— being 

 identical with those presented by Pseiulonipnpha. 



Hewitson's description is not sufficiently detailed to allow of certainly 

 identifying his Yphthima bera with Mr. Butler's species. Should comparison 

 with the type prove the two to be distinct, Mr. Eriksson's specimens will stand 

 as Pseudonympha duplex (Butl.). 



