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Show 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 underside 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. P S E U D O N Y M P H A B E R A (Hewits.). Yphthima bera, Hewits. Ent. M . Mag. xiv. p. 107 (1877). Neoccenyra1 duplex, Butl. Proc. Zool. Soc. 1885, p. 758. Okavango River, between Omaramba-Carongo and Omaramba- Matako (December) : Omaramba-Matako (January). Fourteen examples (nine <5» five $ ) were taken on the Okavango, and one $ on its tributary the Omaramba Matako. I have referred to this Pseudonympha in ' South-African Butterflies' (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 interiorly (in male not far below second median nervule, and in female attaining first median nervule in one example only), more rounded inwardly, and externally much more sharply indented by the dark edging line 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 different 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 striae wholly wanting in Y. neita, and very much more developed subbasal ferruginous-rufous marks on costa and inner margin. 1 I am of opinion that this genus cannot be adopted, all the characters given as distinctive by the founder-while they separate it from Caznyra-being identical with those presented by Pseudonympha. 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.). |