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Show 168 MR. A. G. BUTLER ON N E W [Mar. 6, oblique, broad below, very narrow upwards, and just meeting behind the rostral, vertical 3-sided shield-shaped ; eyes very small, near the front of the ocular shield ; scales in 19 rows round the anterior portion, in 17 round the middle of the body ; abdominals 226; anal bifid; subcaudals 6 pairs, length 21| inches, girth very nearly 2 inches. Colour uniform brown, but somewhat paler below; a marginal yellow band along the side of the trunk for a short distance, commenciug at the 4th labial; tail black below, but encircled by a yellow band. Caudal disk rather flat; the scales with 4-5 prominent keels; terminal one very large, bluntly bicuspid. Hab. Anamullay Mountains, 4000 feet elevation ; very rare. 3. Descriptions of new Species of Heteroeerous Lepidoptera in the Collection of the British Museum. By A R T H U R G. B U T L E R , F.L.S., F.Z.S., & c [Received February 16, 1877-] The followiug interesting new species are all based on comparatively recent additions to the national collection. SPHINGID^E. D I L U D I A C H R O M A P T E R I S , n. sp. Primaries silvery grey, crossed by subangulated lunulated brown lines, very indistinct at the base, most strongly marked upon the costal area; the usual apical patch bordered with dark brown, and from its infero-interior angle to the inner margin a series of five sinuated black liturse; the usual longitudinal black streaks on the median areoles, but the upper one much elongated and forking (from its outer extremity) into two clavate lines, which almost reach the outer margin ; discoidal stigma white, black-edged ; secondaries with the basal half bright ochre-yellow, the external half greyish brown ; two transverse central bands, the inner one black, the outer one dusky, dentated, bordered externally by pale grey diffused spots ; a large spot at anal angle, its inner half black, its outer half white; fringe of all the wings white, spotted with brown; body grey, irrorated with red-brown ; the head and collar with a central longitudinal inverted ^-shaped dark-brown marking ; tegulae bordered externally with black, and fringed with white hairs ; metathorax with a large central transverse blackish spot; body with a central blackish line, and with lateral increasing longitudinal bands on each segment ; antennse reddish : wings below uniformly whity-brown ; the base of primaries yellow to the centre of the discoidal cell; fringe as above; body below white : expanse of wings 3 inches J1 lines. Hab. Madagascar. This beautiful species seems to be allied to Sphinx jasmini of Boisduval; but the coloration of the secondaries and the uniform character of the under surface at once distinguish it. |