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Show 30 MR. R. TRIMEN ON BUTTERFLIES FROM [Jan. 16, species, both of the typical brownish-rufous form. They were taken on the Pungwe Eiver. 25. ACRJEA RAHIRA, Boisd. Acrcea rahira, Boisd. Faune Ent. de Madag. etc. p. 33, pi. 5. figs. 4, 5 (1833). A male from Umtali and another from the Vunduzi, both of the typical South-African form, but with the black spots considerably reduced in the latter specimen. 26. ACRMA BUXTONI, Butl. Acrcea buxtoni, Butl. Ann. & Mag. Nat. Hist. ser. 4, xvi. p. 395 (1875). Twenty-seven examples taken in Christmas Pass, and six others from different localities, agree with Natalian specimens, the females varying in the same manner. One male, however, from Christmas Pass, exhibits a peculiarity on the underside of the hind wings, where in the discal series the 2nd, 3rd, and 4th spots, and also the 5th and 6th spots, are united, so that each group forms a narrow streak. 27. ACRCEA CABIRA, Hopff. Acrcea cabira, Hopff. Monatsb. Preuss. Akad. Wissensch. 1855, p. 640. n. 7. Twelve specimens from Christmas Pass do not differ from those found farther southward. Genus PLANEMA, Doubl. 28. PLANEMA JOHNSTONI (Godm.). $. Acrcea johnstoni, Godm. Proc. Zool. Soc. 1885, p. 537. 5 . Acrcea (Planema) johnstoni, Butl. op. cit. 1888, p. 91. This species was founded on a single male collected by Mr. H. H. Johnston on Kilima-njaro at an elevation of 5500 ft. The female was noted by Mr. Butler (loc. cit.) from two examples, one of them taken in the same locality as the female, the other in the hills of Terta. So very dissimilar are the sexes (the male having the fore wings ochre-red from base up to and including the two obliquely disposed pairs of discal spots, and the female having the males and all the females exhibit the same strong melanic marking, and even the remaining three males show a slight tendency in the same direction. Although A. acara, as noted in m y S.-African Butt. i. p. 160, varies much in the development of the black markings, I have not seen any other examples that approach the very heavily black-clouded condition of Mr. Eriksson's specimens. It should be noted that this variation is not at all in the direction of the allied A. zetes (L.), which is recorded from Angola and as far north on the West Coast as Sierra Leone, as in that species it is the entire ground of the fore wings that is suffused with greyish fuscous, the black markings themselves not being enlarged or confluent. |