KEY TO THE GROUPS-CHRYSALIS. 57 



D^ Hair-like aj^j^endages of the skin short, mush- 

 room-shaped (Tribe Coppers.*) 



e\ Abdomen rounded, the last segments not sepa- 

 rately protuberant, 

 f '. Only the lower half of ninth abdominal seg- 

 ment sloping forward. 



30. Cliryso])lianus. 

 f^ The whole of ninth abdominal segment 



sloping forward 32. Heodes. 



e\ Abdomen with irregular surface, the hind 

 segments protruding and expanded. 



33. Feniseca. 

 C\ Body elongate with angular projections, the front 



with one or two projecting tubercles. 

 W. Front end with a single conical j^rojection or 



rounded prominence. 



(Subfamily Pierids.) 

 E\ Wing-cases distinctly protuberant below the 

 general under surface of the body. 

 r\ The head well distinguished from the frontal 

 projection. 



(Tribe Yellows or Eed Horns.) f 



g'. Ventral protuberance of wings doubling 



the depth of the body. 



\\\ Fourth abdominal segment with a 



distinct sharp ridge along the sides. 



34. Callidryas. 

 li\ Fourth abdominal segment with no 



distinct ridge 37. Xantliidea. 



g\ Ventral protuberance of wings not 

 doubling the depth of the body, 

 h'. Frontal process slender, acuminate. 



38. Eurema. 



* Chrysalis of Epidemia unknown, 

 f Excepting Natlialis. 



