Green-Veined White 



But the caterpillars are very different in appearance. 

 In this species the colour is a soft velvety green, with a 

 faint yellow line down the back. Stretched at full 

 length on the midrib of a cabbage-leaf, it is by no 

 means a conspicuous object, and may be quite easily 

 overlooked ; but if you see the leaves riddled with 

 holes, and find excrement lying between them and at 

 the base, don't cease looking until you find the culprit, 

 sometimes deep in a cabbage, or on the back of the 

 outer leaves. 



Other caterpillars besides those of the Large and 

 Small Whites may be present in force, notably those of 

 the Cabbage moth (Mamestra brassier), large stout 

 caterpillars varying from green to black ; they are far 

 too numerous, so have no compunction about destroy- 

 ing all you find. The caterpillar is apt to lose its 

 colour in preserving, as is the case with all green 

 caterpillars. 



GREEN- VEINED WHITE (Pieris napi\ Plate I., Fig. 5. 

 Unlike the last two species, this White is more often 

 found in the country than the town, and in my experi- 

 ence it is only a casual visitor to suburban gardens. I 

 have never found the caterpillars there. 



To distinguish it from the last species it is only 

 necessary to examine the under side, where both fore- 

 and hind-wings are strongly veined with greyish-black, 

 the female particularly so. On the upper side the veins 

 are distinctly marked, but the line is finer. 



In a rather wet meadow where Ladies' Smock abounds 

 in early June, I have seen this butterfly in profusion, 

 35 



