NYMPHALIN^. (Group NYMPBALINA.) 55 



subcostal branch, lower discocellular extremely slender, outwardly oblique; two 

 upper medians from end of cell. Body slender ; palpi slender, flattened, smoothly 

 scaled, laxly hairy at base and apex of second joint above, second joint curved 

 upward, third joint projected forward ; antennal club robust ; eyes naked. 



Type.— C. Rahria. 



Larva. — Cylindrical, smooth, with two straight fleshy filaments projecting 

 forward from the head, a single backward-curved dorsal filament ou fifth segment, 

 and a similar one on the twelfth or last segment. Colour pale green, with a dorsal 

 pale pinkish band. 



Pupa. — Tapering from the end, thorax obtusely angled above ; with a medio- 

 dorsal biangulated process ; head-piece with two curved projected processes. Colour 

 pale green, dorsal and frontal processes brown. (Described from Hagen's figure 

 (Iris, 1896, pi. 1.) 



Habits of Imago. — Mr. de Niceville states that "all the species of Chersonesux, 

 in Sumatra, occur only in forests, and, unlike true Ci/reiitis, never go to roads or 

 moist places, but keep to low bushes, and rest on the underside of the leaves. They 

 fly weakly, and are easily captured " (J. A. 8. Bengal, 1895, 432). The late Mr. 

 W. S. Atkinson, in his MS. Notes, says that G. Bisa " settles on the underside of 

 leaves with the wings distended." 



CHERSONESIA EISA (Plate 307, fig. 3, 3a, h, ^ ? ). 



CyresHs Risa, Doubleday and Westwood, Gen. D. Lpp. ii. p. 2G2, pi. 32, fig. 4 (1850). Moore, P. Z. S. 



1878, p. 829. de Niceville, Butt, of India, etc., ii. p. 256 (1886). 

 Chersonesia Risa, Distant, Ehop. Malay, p. 142 (1883). Doherty, J. As. Soc. Bengal, 188(3. p. 122. 



Imago. — Male. Upperside rich ochreous or yellowish-ochreous. Both wings 

 crossed by a basal pair of fine black straight lines, the space within irrorated with 

 black scales ; another pair beyond ; two similar discal lines, the outer one of which 

 has a series of more or less pale ochreous-yellow triangular patches along its inner 

 edge, these patches being most prominent on the hindwing, followed by a steel-blue 

 line which is somewhat macular and less defined on the forewing, where it is divided 

 in the middle by a more or less pale ochreous-yellow patch and other smaller 

 anterior patches on a dusky-speckled gi'ound ; beyond is a submarginal fine black 

 wavy line and a straight marginal line. Foreiving also with a basal-costal black 

 line, and two discocellular fine black lines. Hindwing also with a single discocellular 

 fine black line, two outer discal and submarginal lines sinuously bent inward at their 

 lower ends, and with two small black ceutral dots above anal lobe; marginal line 

 inwardly-edged with violaceous-white from the anal angle. Underside paler, markings 



