62 PlliKID.E. 



Genus XI. HEBOMOIA Htibn. 



Hiibn. Vers. bek. Schmett. 95. (1816). 



Iphias Boisd. Sp. Gen. I. 695. (1836). 

 Pieeis God'. 

 Colias Horsfield. 



Head rather broad, hairy. The forehead with a projecting tuft of hair on each side, below the base of 

 the antennae. 



Eyes somewhat oval, not remarkably prominent. 



Labial Palpi scaly, longer than the head. The basal joint subcylindric, curved ; second not quite so 

 long as the first, oval, concave internally, convex externally ; third joint minute, rounded, 

 placed on the inner side of the second joint, a little below the apex. 



Antennae of moderate length, rather stout, thickening gradually to the apex, which is truncate. 

 Thorax stout, clothed with long fine hairs. 



Anterior Wings subtriangular ; the costa rounded, the inner margin in the males slightly sinuate. 

 Subcostal nervure four-branched ; the first and second nervule thrown off near together, 

 considerably beyond the middle of the cell ; the third very near to the apex. Upper disco- 

 cellular nervule short, directed forwards and slightly downwards, forming an acute angle with 

 the middle disco-cellular, which is slightly curved. Lower disco-cellular nervule suddenly bent 

 outwards, at about half its length ; rather more than twice the length of the upper. Submedian 

 nervure curved upwards about the middle of its course. Internal nervule very delicate, short ; 

 directed forwards, so as to terminate in the submedian nervure, instead of on the inner margin 

 of the wing. 



Posterior Wings obovate, the abdominal channel ample. Precostal nervure simple. Discoidal 

 nervure appearing to be a third subcostal. 



Legs rather slender. Tarsi spiny. Claws stout. Paronychia broad, lunate ; quite as long as the 

 claws, which they almost conceal. Pulvillus jointed, as long as the claws. 

 Abdomen elongate, rather large. 



Larva stout, subcylindrical, tapering towards each extremity; the whole upper surface 



covered with minute tubercles. 

 Pupa much arched, not tuberculate, tapering gradually to a point at each extremity. 



This genus, of which as yet we know but two species, is easily known from any of the preceding, by its large size, 

 the gradually thickening antenna:, the peculiar form of the palpi, and the presence of the upper disco-cellular nervule. 

 The white or yellow colour of the wings, with a broad red patch near the apex ; the minute terminal joints of the 



