| OCR Text |
Show 24 MR. R. TRIMEN ON BUTTERFLIES FROM [Jan. 16, the same tint, and those of A. boscce, Saalm., and A. igola, Trim., apparently being always of that colour. Mr. Selous's example has the last spot of the discal series in the hind wings much reduced in size, as well as the basal and subbasal spots, in comparison with the more southern specimens referred to; the former of these distinctions approximating it more to the figures given by Gran-didier of Madagascar examples. Mr. Selous notes that this was the only individual of this species met with ; it was flying slowly on an open hill-side. 14. ACRJEA NOHARA, Boisd. Acrcea nohara, Boisd. App. Voy. de Deleg. dans l'Afr. Aust. p. 590. n. 54 (1847). A male and female of the usual size from the Mineni Valley, and three small males from near the Vunduzi Eiver, all differ from the Natalian type-form in the marked reduction of all the black markings ; in the fore wings the subbasal spot below the median nervure is present only in two males, while that beyond middle below first median nervule is absent in all the specimens ; and in the hind wings the third and fifth spots of discal series are wanting. There is also less black on the apical half of the back of the abdomen in both sexes. 15. ACRCEA ASEMA, Hewits. (Plate IV. figs. 3, 3 a, <5 $.) Acrcea asema, Hewits. Ent. M . Mag. xiv. p. 52 (1877) ; nee Trim. Proc. Zool. Soc. 1891, p. 68, pi. viii. figs. 9, 10. Mr. Selous's series of both sexes of this Butterfly-3 from Christmas Pass, 1 from Sikuva Eiver, 15 from the Mineni Valley, and 2 from the Vunduzi Eiver-has made it clear that I was mistaken in identifying with A. asema, Hewits. (founded on examples from Lake Nyassa), the Acrcea from tropical South-west Africa described fully by me loc. cit. In order to obtain an independent opinion as to the true A. asema, I sent one of M r. Selous's specimens to m y friend Mr. A. G. Butler, for comparison with the type specimens in the Hewitson Collection, and he reports it as undoubtedly belonging to the species in question. Mr. Hewitson's brief description of A. asema applies equally well to both the forms concerned, but as it is now settled which was actually the subject of it, and as the S.W. African form must in m y opinion be pronounced a distinct species, I propose for the latter the name of Acrcea omrora \ I think it well to give a fresh description of both sexes of A. asema from the full material supplied by M r . Selous. 1 For a detailed description of both sexes, the reader is referred to Proc. Zool. Soc. 1891, pp. 68-70. It will be sufficient to note here that A. omrora differs from A. asema in the following particulars, viz.: 1, more opaque wings; 2, on both surfaces a much brighter yellower ground-colour- 3, a greatly reduced condition of the black spots, which in some examples are little more than dots, and of which in most examples (especially in the hind wings) there is a varying number quite obsolete ; 4, on the upperside, a narrower, more sharply defined black hind-marginal and apical edfinc in the fore wings, but a broader, blacker, unspotted, or indistinctly spotted, border in |
