BUTTERFLY. 
211 
P. Cratcegi or the Hawthorn Bntterfly is nearly 
of the size of the common cabbage butterfly, 
and is of a white colour, with black flbres on the 
wings, and is seen in the months of June and 
July. 
Of the longer winged Heliconii the P. Ricini is 
a good example: it is black, with two yellowish, 
obliquely-transverse bands on the upper wings, 
while the lower are deeply bordered with black. 
It is a native of South-America. 
Of the division entitled Banal Candidi the com- 
mon large white Butterfly, or P. Rrassicce is a 
familiar example t this insect is too well known to 
require particular description, and it may be only 
necessary to remind the reader that it proceeds 
from a yellowish caterpillar freckled with blueish 
and black spots, and which changes during the 
autumn into a yellowish grey chrysalis, affixed in 
a perpendicular direction to some wall, tree, or 
other object, some filaments being drawn across 
the thorax in order the more conveniently to 
secure its position. The fly appears in May and 
June, and is seen through all the summer. 
The term Candidi in this division, being applied 
only in a general sense, it of course contains some 
species of a different colour: among these one of 
the most elegant is the P. Rhamnl or Buckthorn 
Butterfly, of a bright sulphur-colour, with sharp- 
cornered wings marked by a small orange spot in 
the middle of each. It is not uncommon during 
spring and autumn. 
P. Hyak or the Fern Butterfly is also in this 
