GREEN-VEINED WHITE BATH WHITE. 65 



less distinctly, on the upper side will at once distin- 

 guish it from the last species, the only one with which 

 it can possibly be confounded. 



The male has only one round spot on the front wings ; 

 the female being marked as in the plate. 



Eoth in woods and cultivated grounds we meet with 

 this butterfly commonly enough, most abundantly in 

 May and July, though it may be found from April to 

 August. 



The caterpillar feeds on the same tribe of plants as 

 the two last, but is supposed to be especially attached 

 to the Rape (Brassica Napus\ whence its specific name. 

 Its colour is green, with yellow spots round each spi- 

 racle, which is itself tinged with red. 



Two varieties of this were formerly ranked as distinct 

 species, under the name of P. Sabellicce and P. Naposce. 



THE BATH WHITE. (Pieris Daplidice) 

 (Plate IY. fig. 5, Female.) 



OP all the members of this white- winged genus that 

 inhabit Britain, this is at the same time the most beau- 

 tiful and the rarest. The capture of a Bath White is 

 an entomological " event," and the day thereof is a red- 

 letter day in the fortunate captor's life. 



On the opposite coast of Erance, however, and gene- 

 rally on the Continent, far from being a rarity, this is 

 one of the commonest butterflies a fact difficult for an 

 English collector, removed by only a few miles of sea, 

 to realise, or reconcile with the extravagant value and 

 importance attached to a true " British specimen." 



The remark made under the head of the Black- 

 veined White, as to that eluding the net of the novice, 

 by its resemblance to a common kind, will apply with 

 still greater force to this one ; for I suppose there are 

 few even of the tolerably experienced " hands" who could 

 tell this from the two last described insects, at a short 



F 



