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Show 16 MR. C. V. A. PEEL AND OTHERS ON [Jan. 23, veins :-in the fore wing the 2nd and 3rd subcostal, the two radial and the three median branches; in the hind wing the 2nd subcostal, the radial, and the three median. These marginal spots are oval in the hind wing, the long axis being parallel with the border of the wing; in the fore wing they are more or less triangular, with their bases at the margin. The first two at the apex of the fore wing are more or less fused ; the remainder in both wings are distinct. There is a slight submarginal powdering of black scales in tbe fore wing between the 2nd and 3rd subcostal, and also between the two radials. A much fainter powdering occurs between the 3rd subcostal and upper radial, and the slightest possible trace of a similar powdering between the 2nd aud 3rd median. The marginal spots aud the submarginal powdering mark out between them a very indistinct series of white subapical spots, the first three more or less wedge-shaped, the fourth nearly circular; these are barely to be separated from the general white surface. Beneath, the wings are white; there is a thin dusky line along the costa of the fore wing, and dark marginal spots, like those of the upper surface but smaller, occur at the extremities of the same veins in both wings. There is an orange-yellow patch at the base of the fore wing, occupying about one-fifth of the cell, and somewhat prolonged along the course of the subcostal vein. The same orange-yelknv colour occurs in the hind wing as a streak along the costa, as a well-defined patch between the roots of the median and submedian veins, and as a median chain of spots crossing the disc of the wing from the costa to the inner border ; these latter are seven in number, one occupying each interspace posterior to the costal vein except the space between the second subcostal and discoidal, and that between the second and third median. The third of the series surrounds the discocellular venule. This and the four succeeding spots are fairly distinct; the other two are faint. There is also a very slight indication of a submarginal series of dull yellow spots running parallel with the hind border of the wing. Female. Above, like the male, but with the marginal dark spots somewhat larger. These are triangular in the hind wing, and in the fore wing become fused towards the apex into a narrow marginal band. The dark subapical powdering forms more definite and larger patches thau in the male, and the white subapical spots are consequently more distinct. There is a trace of a marginal dark spot at the termination of the submedian vein of the fore wing, which is hardly if at all visible in the male. The basal pearly-gloss is well marked, and tbe basal orange-yellow shows slightly through from the lower surface. Beneath, as in the male; but the basal orange-yellow occupies from one-third to one-half of the cell instead of only one-fifth. The submarginal series of spots is somewhat more distinct than in the male, and appears to be of the same orange-yellow as the median series. In both sexes the first subcostal branch of the fore wing coalesces with the costal. The wings of the male are slightly more pointed, |