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Show 1885.] LEPIDOPTERA F R O M SOMALI-LAND. 769 costal margin. Expanse of wings, 6* 36-41 millim., 5 35-44 millim. o* 2 • Bunder Maria, 30th April, 1884.-Yerbury. d 2 • Less than 80 miles S. of Berbera.-Thrupp. I have fully expected to receive a species linking T. miriam to the T. halimede group for some years past; when we receive the male of T. coliagenes, I have no doubt it will prove to belong to the latter group, perhaps tending to link it to T. abyssinicus, T. eris, and T. maimuna. T. miriam of Aden has been refigured, as from Madagascar, by M. Mabille under the new synonym of Anthocharis eucheria. Anthocharis is an obsolete name for the European genus Euchloe, which differs from Teracolus in neuration in having five subcostal branches instead of four to the primaries, and in the position of the upper radial, which is emitted from the inferior edge of the subcostal vein beyond the cell; these are points which prove Euchloe to belong to a different section of the subfamily from that to which Teracolus belongs. The two forms of T. pleione, which scarcely differ aud certainly interbreed, have now been described four and figured three times. 35. TERACOLUS PR<ECLARUS, n. sp. (Plate XLVII. fig. 7.) Allied to T. amina, the male on the upper surface only differing in the greater width of the blackish border and the absence of marginal spots, the female differing also in its yellower colour (the base of the primaries and whole of secondaries up to the border being yellow) ; the blackish apical half of primaries irrorated with carmine, crossed by seven spots of this colour and with six marginal carmine dots: under surface entirely distinct from T. amina, the primaries with the basal three fifths of the discoidal cell cadmium-yellow, shading into lemon-yellow towards the costa and vermilion towards its outer extremity; female also with a broad submedian streak of vermilion, a round black spot at the end of the cell; a central white belt enclosing the black spot, beyond which the whole disk, with the exception of a triangular apical patch, is bright rose-red and crossed by an angular series of black spots ; apical patch yellow and quad-rifid internally, dark ochraceous flesh-coloured externally: secondaries lemon-yellow, with the basi-abdominal area in the male yellowish flesh-coloured, and in the female bright gamboge-yellow ; the external area ochraceous flesh-coloured, bounded internally by an angular lilacine brownish macular band enclosing a series of bright yellow crescents: body below whitish. Expanse of wings, $ 43 millim., $ 48 millim. One pair, the male taken by Mr. Thrupp and the female by Mr. Lort-Phillips, who captured it with his fingers whilst it was hovering about the flowers of a Mimosa or similar shrub. This is one of the most distinct, beautiful, and at the same time interesting species yet discovered. I have long been looking for evidence that T. amina and T. celimene are intermediate (as they appear to be) between the two groups to which the names |