CATOPSILIA. DERCAS. 225 



generally with a series of terminal black spots in the interspaces 

 Underside: rich cadmium- or chrome-yellow. Pore wing: a 

 posterior area below cell and vein 2 pure white, the yellow 

 however extends down to the tornal angle in a curve ; both fore 

 and hind wings with small discocellular pinkish spots that are 

 ringed with circles of darker brownish-pink scales, and crossed by 

 a series of lunular diffuse discal markings of similar brownish- 

 pink scales. Antennae and head above reddish brown; thorax 

 clothed with fuscous-grey hairs, abdomen yellow ; beneath : palpi, 

 thorax and abdomen yellow. $ . Similar. Upperside, fore wing: 

 ground-colour dull creamy-white, the black on apical portion of 

 costa, on the apex itself and along the termen much broader; a discal 

 series of ill-defined diffuse black spots curved strongly inwards 

 anteriorly and a small discocellular diffuse black ring. Hind 

 wing : as in the J , the yellow of a duller shade that turns to pale 

 pinkish white towards basal area above the cell ; a discal series, 

 sometimes obsolescent, of dull brownish-black lunular markings ; 

 the spots in the terminal series much larger and duller in 

 colour than in the J Underside : as in the <$ , but all the black 

 markings of the upperside replaced in rich pinkish-red tints. 

 Antennae, head, thorax and abdomen as in the d . 



Exp. tf $ 58-72 mm. (2-26-2-86'"). 



Hab. Within our limits, the extreme south of Tenasseritn; 

 extends through the Malayan Subregion to Australia ; recorded 

 from China. 



Larva. " Dark velvety green, with a yellowish-white lateral 

 streak and some very minute black spots anterior to the streak, 

 the whole surface delicately ringed or indented like a leech." 

 (Martin.) 



Pupa. " Has a pointed head like that of C. crocale, but is 

 shorter and more convex than the slender pupa of that species." 

 (Martin.) 



Genus DERCAS. 



Dercas, Doubleday, Gen. Di. Lep. 1847, p. 70 ; Sutler, Cist. Ent. 

 i, 1870, p. 45, pi. 2, fig. 1 ; de Nicevitte, A. M. N. H. (7) ii, 



1898, p. 478. 



Type, D. verhuetti, Van der Hoeven, from China. 



Range. India ; Burma ; China ; Malay Peninsula ; Sumatra ; 

 Borneo. 



cJ 5 . Fore wing : costa strongly arched, apex shortly produced 

 into an acute point, much more so in the $ than in the d ; termen 

 below apex concave, dentate at apices of veins 4, 5 and 6 ; tornus 

 forms a blunt right angle ; termen very short, about half length 

 of eosta ; dorsum long, slightly sinuate ; cell short and broad, not 

 half length of costa ; both middle and lower discocellulars concave, 

 upper absent, middle about half length of lower ; veins far apart, 

 vein 6 from basal third of 7, vein 8 absent, vein 9 from base of 



VOL. II. Q 



