228 



THE HAWTHORN. 



taken not to approach the roots, lest injury should 

 be done. I have seen old Thorns near wells almost 

 covered with bits of garments, particularly in the 

 south of Ireland." 



Among the numerous insects which either 

 wholly or in part derive their sustenance from 

 the Hawthorn, 1 will proceed to describe the 

 most worthy of note. 



The Black-veined white, or Hawthorn Butter- 

 fly {Pieris cratcegi), derives its name from one of 

 the favourite trees to which it resorts to lay its 



HAWTHORN BUTTERFLY. 



eggs, and on which its caterpillar feeds. The 

 perfect insect resembles very closely the Cabbage 

 Butterfly {Pontia Irassicce), so destructive in 

 kitchen-gardens. 



It differs principally from the latter in having 

 the ribs or veins of the wings black, and in being- 

 destitute of the two black spots on the under-side 

 of the fore ^raigs, which characterise the Cabbage 

 Butterfly. In the month of June or July, the 

 Hawthorn Butterfly lays from a hundred to a 

 hundred and fifty yellow, cylindrical, ribbed eggs, 

 on a leaf of the Hawthorn, apple, or some other 

 tree of the same tribe, selecting generally the 



