. Butterflies. Vol. Lepidoptera. CYRESTIS. CHERSONESIA. 353 than pale grey, and the markings are less blurred. Many Sikhim specimens, however, are very similar to the pale Andaman form. 367. Cyrestis periander, Fabr. (Papilio) Mant, Ins. ii, 1787, p. 9; de N. Butt. Ind. ii, 1886, p. 255; Moore (Apsithra), Lep. Ind. iv, 1899-1900, p. 61, pi. 308, figs. 2, 2 a, <$ $. Upperside white, often more or less irrorated with dusky scales, especially towards the bases of the wings; fore and hind wings crossed by transverse narrow interrupted bands of ochraceous yellow, four across the cell of t
. Butterflies. Vol. Lepidoptera. CYRESTIS. CHERSONESIA. 353 than pale grey, and the markings are less blurred. Many Sikhim specimens, however, are very similar to the pale Andaman form. 367. Cyrestis periander, Fabr. (Papilio) Mant, Ins. ii, 1787, p. 9; de N. Butt. Ind. ii, 1886, p. 255; Moore (Apsithra), Lep. Ind. iv, 1899-1900, p. 61, pi. 308, figs. 2, 2 a, <$ $. Upperside white, often more or less irrorated with dusky scales, especially towards the bases of the wings; fore and hind wings crossed by transverse narrow interrupted bands of ochraceous yellow, four across the cell of the fore wing, of which the basal, preapical and apical are short, not continued to the dorsum ; a broader posterior postdiscal transverse ochra- ceous band on the hind wing not extending beyond vein 6 ; apex of fore and termen broadly of both fore and hind wings dull blackish, traversed by a series of more or less hastate jet-black spots, which on the fore wing are minute, placed on the dull blackish margin, and on the hind wing larger, bordering Fig. 66. tQe black margin ; outwardly circled by very Cyrestis periander. \. slender black lunules ; fore and hind wings with a prominent subterminal black line bordered on either side very narrowly with white, tornal lobe often bluish. Underside pearly white with a pink tinge ; markings as on the upperside, but more dull and faint. Antennae ochraceous brown ; head, thorax and abdomen dusky white. Exp. <$ 2 48-54 mm. (1-9-2-12"). Hab. Tenasserim and Siam, spreading through the Malayan Subregion to Java. Genus CHERSONESIA. Cyrestis, pt., Westivood, in Dblday., Westiv. fy Heto. Gen. Di. Lep. ii, 1850, p. 260; de N. Butt. Ind. ii, 1886, p. 248. Chersonesia, Dist. Rhop. Malay. 1883, p. 142. Type, C. risa, Doubleday, from India. Range. Indo-Malayan Region. <$ 2 • Fore wing: costa arched, apex obtusely pointed, termen straight or convex, tornus angular obtuse, dorsum slightly bi- sinuate ; cell short, about one-third length of w
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