12 PIERID.E. 



Genus V. PIEUIS Boisd. 

 Boisd. Sp. Gen. i. 434. (1836). 



Pieris Schrank, Lair., God', tyc. 



Pontia Fair., Ochs., Stephens, cfc. 



Aporia, Mylotheis, Appias, Peeryhybkis, Delias, Cath^emia, Pontia, Belenois, Acrjea, Anaph^ea, 



Catophaga, Synchlok, Hiibn. 

 Leuconia Donzel. 



Head rather small, hairy. 



Eyes round, moderately prominent. 



Labial Palpi longer than the head ; the first joint generally much longer than the second, both 

 stout, more or less cylindric, especially the first, clothed anteriorly with long hairs ; third joint 

 cylindric, slender, rather pointed, mostly as long as, or longer than, the second, clothed with short 

 appressed scales, and a few hairs in front at the base. 

 Antennas of moderate length, with a short obconic club, generally compressed. 

 Thorax moderately stout, clothed with long delicate hairs. 



Anterior Wings more or less triangular, sometimes elongate, slightly falcate, or rounded externally. 

 Subcostal nervure three, or four branched. Upper discoidal nervule united to the subcostal for 

 some distance beyond the cell. Lower disco-cellular rather long, curved inwards. 

 Posterior Wings obovate, sometimes rather elongate, with the base slightly produced anteriorly ; 

 sometimes more rounded. Discoidal nervule becoming a third median nervule. Inner margin 

 forming a very distinct channel for the reception of the abdomen. 

 Legs moderately strong. Claws deeply bifid. Paronychia not quite equal to them in length, broad, 

 subtriangular. Pulvillus as long as the claws, jointed. 

 Abdomen rather slender, not extending to the end of the wings. 



Larva subcylindric, with the head small, rounded; more or less clothed with hair. 

 Pupa angular, pointed anteriorly, not arched, sometimes tuberculate; abdominal segments 

 tapering to a point. 



This extensive genus is cxtrernel) difficult to characterise in a satisfactory manner, on account of the great variations 

 in the form and structure of nearly allied species. The palpi, in nearly all the species, have the third joint slender, 

 mostly longer than, or at least quite as long as, the second; though to this there are exceptions, as Pi. Daplidice, where 

 the third joint is a little shorter than the second, and in some few species it is very short. The antenna? have the club 

 less elongate than in Euterpe, to which genus some species of this arc so closely allied that it is with great hesitation I 

 have followed Dr. Boisduval in separating them by the interposition of so many genera. 



