108 INJURIES FROM BUTTERFLIES. 
insinuated into the bosom of the flowers of cauli- 
flowers. 
The caterpillar of the Hawthorn Butterfly (Papi- 
lio crateegi of Linneus) was very destructive to the 
foliage of fruit-trees, in some parts of Germany, in 
the year 1791.* 
Dr Bright, in passing through the district of 
Kérmond, in Lower Hungary, says,— I observed 
an extensive forest of oak, apparently six weeks 
later in its vegetation than any we had passed. On 
inquiry, it appeared that it arose from the ravages of 
a destructive species of caterpillar (probably that of 
the Papilio Betulc) stripping the whole forest of its 
leaves; which, the peasants told me, was here no 
uncommon occurrence. I find agricultural writers 
in Transylvania speaking frequently of this cireum- 
stance, and their fruit nurseries, in particular, seem 
to suffer greatly from these insects.” 
" Roser, i. chap, 2, p. 15. 
