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Show 82 MR. A. G. B U T L E R O N N E W LEPIDOPTERA. [Jan. 17, British Museum some time ago, with the request that (in case their proving to be new) I should describe them. Genus SPHINX. SPHINX DIFFISSA, n. sp. Wings above greyish ochraceous; fringe alternately brown and white. Front wings with an irregularly dentated waved black line, edged interiorly with whitish from costa to near anal angle, and united with apex near costa by an irregular oblique broken black line; basal area irregularly marbled and streaked with dark grey scaling j a whitish point at end of cell, and another quite white at base. Hind wings pale grey, crossed by two white bands, bounded on either side by blackish; the outermost blackish border broad, especially towards costa, and terminating at anal angle. Thorax greyish ochraceous, marbled with blackish ; a yellow point on each side of the collar. Abdomen black at base, with a yellow point on each side ; a central grey-brown stripe, and on either side a series of five golden-yellow spots, encircled with black. Wings below pale greyish ochraceous ; a whitish band traversing the wings from costa of front to anal angle of hind wings. Body pale greyish. Expanse of wings 3 inches 6 lines. Hab. Buenos Ayres (Burmeister). B.M. Allied to S. Carolina and S. lucetius. Genus PERICOPIS, Hiibner. PERICOPIS ROSINA, n. sp. 2 . Wings above brown ; front wings with three broad and almost connected semihyaline bands, the first at base, the second from centre of costa to near anal angle, the third (just beyond and almost touching the second) from costa to near centre of outer margin; a red point at base. Hind wings blackish, with a narrow submarginal, anal, rosy, macular band, and £v\*o spots of the same colour between median and subcostal branches; three or four nearly marginal anal white points ; fringe brown. Body blackish. Wings below rather paler ; front wings with darker basal area; apical area exhibiting two broad white patches in place of the two exterior bands of upper surface. Hind wings with red spot at base ; outer rosy spot of submarginal series wanting. Abdomen with brown centre, flecked on each side with squamose creamy points, and terminating in two golden-yellow spots. Expanse of wings 2 inches 8 lines. Hab. Ega (Bates). B.M. Allied to P. leucopheea of Walker. Genus EUCYANE, Walker. EUCYANE HYSTASPES, n. sp. Wings above black, basal area brilliant metallic green ; front |