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Show 70 MR. R. TRIMEN ON BUTTERFLIES FROM [Jan. 16, males from Mineni Valley. The latter and three others from Christmas Pass are the only males that exhibit to a slight extent the shiuing-greyish underside clouding, that characteristic feature of P. lyceus being absent in the rest. The other distinguishing features of P. lyceus, as distinct from the West-African P. nireus, are, however, well expressed. 135. PAPILIO CENEA, Stoll. 2 . Papilio cenea, Stoll, Suppl. Cram. Pap. Exot. p. 134, pi. xxix. figs. 1, 1 A (1791). 3. Papilio brutus, Godt. (pars) Encycl. Meth. ix. p. 69. n. 122 (1819). 3 . Papilio merope, Doubl. (pars) Gen. D. Lep. i. p. 13. n. 92 (1846). 2. Papilio trophonius, Westw. "Ann. Nat. Hist. ix. p. 38, (1842)"; and Arcan. Ent. i. pi. 39. figs. 1, 2 (1845). Twenty-four males and six females from Christmas Pass, all taken during February. The former without exception have a continuous broad or very broad discal black transverse band in the hind wings, but in four of them there is almost an interruption of the band between the 2nd subcostal and radial nervules. The tail of the hind wing is very variable in width and in the extent to which it is spatulate ; in most examples it is black for three-fourths of its length, but in others for about two-thirds and in one for barely half. One specimen presents the very unusual feature of two small spots of the ground-colour in the black border of the fore wings between the 1st radial and 3rd median nervules. This strongly marked form of the male has (with the black-and-white southern form of the female so near the female of P. merope from West Africa named hippocoon by Fabricius) been named P. tibullus by Mr. Kirby. There is no doubt that it is characteristic of East and South-east Africa, prevailing along the coast from Natal to Zanzibar ; but it occurs along with other less heavily-banded males both in Trans-Kei territory and the eastern districts of Cape Colony. The females consist of two near the typical P. cenea, Stoll, but having the markings enlarged precisely as in the two examples from Delagoa Bay which I have recorded in S.-Afr. Butt. iii. p. 249, e; and four of the black-and-white form near the hippocoon 2 of P. merope above referred to. 136. PAPILIO ECHERIOIDES, Trim. Papilio echerioides, Trim. Trans. Ent. Soc. Lond. 1868, p. 72 n. 2, pi. vi. figs. 1, 2. Two specimens from Christmas Pass, a male taken on 19th February and a female on the 20th. The male differs from the southern type-form in having the common transverse band rather narrower and with the component spots more widely separated in the fore wings and narrower on costa in the hind wings ; this band is also almost pure white instead of decidedly yellowish white, as are be- |
