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Show 1891.] FROM SOUTH-WESTERN AFRICA. 61 (Hesperidae.) Pyrgus secessus. Pamphila obumbrata. „ occulta. One of these is the type of a new genus of Lyceenidae, near Zeritis, which I have called Erikssonia after its discoverer. Next to E. acrceina, the most remarkable of the new forms is Aphnceus erikssoni, in which, while the structural characters agree with those of the more brilliantly ornamented section of the genus, the colouring is quite unique and exceptionally plain on both surfaces of the wings. In addition to the new species, I have noted two marked varieties, viz. in the cases of Crenis natalensis, Boisd., and Papilio morania, Angas. Seasonal dimorphism is more or less strongly indicated in the cases of Acrcea atolmis, Hypolyccena cceculus, Aphnceus Herpcenia eriphia, Teracolus subfasciatus, and Callidryas florella. Among the 16 remaining species not known to extend into extra-tropical Southern Africa, 4 are recorded besides from Angola only, 3 from the Upper Zambesi, 1 each from the Umvuli (Mashuna-land), Lake Nyassa, Lake Victoria Nyanza, and Querimba ; 4 others combine in their distribution two or more of the above-mentioned localities; and the last (Charaxes ephyra) ranges from Mashuna-land, south of the Zambesi, to Casamanza, in between 12° and 13° N. lat. on the West Coast. The rarer or more interesting previously described species are: - Acrcea atolmis, A. atergatis, A. asema, Crenis benguelce, concordia, Pseudacrcea poggei, Charaxes guderiana, Aphnceus A. homeyeri, and Abantis sambesina. Family NYMPHALIDAE. Subfamily DANAINEE. Genus DANAIS, Latr. 1. DANAIS CHRYSIPPUS (Linn.). Omrora (August) and Ehanda (September). The nine examples (only oue $ ) are all of the ordinary typical form, but small, the largest expanding 3 in. 3 lin., and the smallest only 2 in. 7 lin. Subfamily SATYRINEE. Genus Y P T H I M A , Westw. 2. Y P T H I M A ASTEROPE (Klug). Omrora (August), Ehanda (August and September), and Okavango River (December). With the exception of a single dwarf male from the Okavango River, the twenty examples (twelve <$, eight $ )are larger than usual (exp. al. 1 in. 6-9 lin.), and of a paler, more hoary grey on the underside |