PAPILIONIN^. 153 



Genus CHILASA. 



Arishe (part), Hiibner, Verz. bek. Schmett. p. 89. 



Clytia, Swainson, Zool. lUast. 2iid Ser. iii. pi. 120 (1833).* 



Forewing triangular, costa arched ; first subcostal at one-tHrd, second at nearly 

 one-fourth before end of the cell, third from its end and terminating at the apex, fifth 

 at one-sixth from below the fourth ; cell extending three-fifths of the wing ; disco- 

 cellulars slightly concave, radial from their angle ; median veins at equal width ; 

 submedian curved near the base, with a short lower internal vein ; median and 

 submedian connected by a transverse veinlet near the base : hind wing subtriangular, 

 costa slightly arched, exterior margin convex, scalloped; cell narrow; costal vein 

 much arched ; first subcostal at three-fifths before end of the cell, second slightly 

 concave at the base ; upper discocellular very oblique, lower bent inward, radial from 

 their angle ; middle median branch at one-fourth, lower at beyond one-half before 

 end of the cell; submedian nearly straight. Body moderately stout. Antenna? 

 short, with a short club. Sexes similar. 



Larva thick, with two dorsal rows of fleshy tubercles, and a lateral third row 

 on anterior segments. Pupa elongated, truncated anteriorly, excavated in front of 

 thorax ; abdominal segments with dorsal and lateral row of short warty spines. 



Type, C. dissimilis. 



CHILASA DISSIMILIS (Plate 57, Fig. 1, a, h). 



Papilio dissimilis, Linn. Syst. Nat. i. 2, p. 782 (1767); Clerck, Icones, pi. 16, f. 2; Cramer, Pap. 



Exot. i. pi. 82, f. C, D; Boisd. Spec. Gen. Lep. i. p. 377. 

 Clytia dissimilis, Swainson, Zool. lUust. 2nd Ser. iii. pi. 120. 



Black : forewing with ochreous-white interrupted streaks between the veins, a 

 submarginal irregular series of dentate spots, and a marginal row of points : hindwing 

 with ochreous-white streaks 'within the cell, discal sagittate streaks, outer dentate 

 lunules. brighter ochreous-white marginal lunules and anal spots. Body with similar 

 coloured spots. 



Expanse, ^ 4, ? 4^ inches. 



Larva with two dorsal rows of fleshy tubercles, and a shorter lateral tubercle on 

 third, fourth, and fifth segments ; greenish -brown, with yellow dorsal, lateral anterior, 

 and a posterior band; between the bands are two lateral rows of crimson spots, and 

 a smaller spot at base of the dorsal tubercles. Pupa cylindrical ; front of thorax 

 excavated ; a dorsal row of short minute spines. Feeds on Tetranthera. 



"Kandy; Galle. Common " (l^Taie). 



" Chiefly in the low country. Sometimes above 2000 feet. Not very abundant 

 at any time. Larva feeds on Cinnamon" (Maclaoood). 



* Inadmissible; also previously used. 

 VOL. I. X 



