PIERID^E 11 



twenty or twenty-two longitudinal ribs, and between 

 thirty and forty most delicate lines, which pass over 

 the ribs themselves, as well as the interstices between 

 them ". E. Newman. 



LARVA. On various Cruciferae, also on Tropaeo- 

 lums, all the year round. 



A fact has been communicated to me, with 

 reference to the caterpillar of Brassicae, which is 

 here worth chronicling. It has been observed in the 

 act of laying eggs on Capparis spinosa (Caper), a 

 plant belonging to a tropical order, distantly related 

 to the Cruciferae. 



PUPA. AbundantonwallSjpalings and outhouses, &c. 



TIMES OF APPEARANCE. April to October. 



HABITAT. Common everywhere ; somewhat less 

 abundant than the former. 



OVUM. The ova of this species resemble a sugar- 

 loaf, and are beautifully ribbed longitudinally, and 

 delicately striated transversely, the number of ribs 

 varying usually from ten to twelve. The striae are 

 considered inconstant ; and are scarcely ever less 

 than thirty. These eggs are attached by the base to 

 the upper side of the leaf. They are found in April 

 and May, and also in July and August. The young 

 caterpillars are often observed eating the shell before 

 quitting it. 



LARVA. On Cruciferae, in June and September. 



PUPA. Same kind of places as the last. 



F>. IVapi. 



TJMES OF APPEARANCE. April to September. 



