In the male specimens of _C. Ione_, captured by Mr. Oates at Tati, the fore wings have the faintest trace of a very minute black discoidal dot, a brilliant silky purple subapical patch, the apex itself black, and the inner edge margined with black, which is slightly scalloped. The hind wings are pure white, with delicate black veins, without any discoidal spot. On the under side the fore wings have the minute discoidal dot, and the apical patch is replaced by pale greyish buff, with a slightly defined darker inner margin; the veins of the hind wings are not black, the basal half of the costa is orange, with a short brownish transverse dash, near the middle of the costa, extending only to the first branch of the subcostal vein; the remainder of the wing white. One of the specimens taken by Mr. Oates at Tati is very small (1⅔ inch in the expanse of the fore wings), with the black veins excessively slender. 20. (10) CALLOSUNE REGINA, Trimen, Trans. Ent. Soc. 1863, p. 520. (Plate E, figs. 9, 10.) The males have the veins of the fore wings, beyond the middle, very slender and black, and with a very minute discoidal dot. The female of this species, here for the first time represented (Pl. E, figs. 9, 10), has the wings on the upper side white, with the veins concolorous; a large black round spot at the extremity of the discoidal cell, and a large purple-red subapical spot, down the middle of which is a richer shade of purple, edged internally with blackish brown, the apex and apical margin being of the latter colour; the base of the wings is slightly powdered with grayish scales, and there are two minute dusky dots towards the inner angle of the fore wings. On the under side the purple patch of the fore wings is replaced by dirty pale buff, having an oblique row of five pale black spots, and the hind wings are slightly fleshy buff coloured, finely freckled all over with pale brown irrorations, with a discoidal spot, and a curved row of oblong spots beyond the middle of the wing, of pale brown; the costal margin is slightly fulvous at its base. The expansion of the fore wings is 2⁵⁄₁₂ inches. Taken at Tati. A male, in the Hopeian collection, from the Zambesi, has the hind wings marked along the outer margin with black dots at the extremity of the longitudinal veins. 21. (11) CALLOSUNE THEOGONE, Boisduval; Trimen, p. 51. One specimen. Locality not recorded. 22. (12) CALLOSUNE BUXTONI. (Plate E, figs. 7, 8.) _Callosune Buxtoni_, Butler, MS. in British Museum.