182 
THE INSECT WORLD. 
turf of meadows, is the first joy and the first passion of children 
in the country. 

Fig. 144.—Pieris brassicz. 
The caterpillar (Fig. 145) is of a yellowish green, or rather 
greenish yellow, with three yellow longitudinal stripes separated 

Fig. 145.—Caterpillar 
and  Chrysalis_ of 
Pieris brassicee. 
by little black points, from each of whieh springs 
a whitish hair. It lives in groups on the cab- 
bages in gardens, and on many other Cruciferee. 
It is so voracious that it consumes in a day more 
than double its own weight, and, as it multiplies 
very quickly, commits great, ravages in the 
vegetable garden. Its pupa (Fig. 145) is of an 
ashy white, spotted with black and yellow. 
The Pieris rape, or Small White Butterfly, 
differs but little from the preceding except im 
size. The caterpillar, which lives on the cab- 
bage, turnip, mignonette, nasturtium, Xc., is 
green, with three yellow lines. It does not 
do these much harm. In France it is called 
le ver du ceur (the heart-worm), because it 
penetrates in between leaves pressed closely 
together. 
The Pieris napi, the Green-veined White, is very like the two 
preceding, but the wings, the lower ones especially, have under- 
neath broad veins, or bands, of a greenish colour. The Preris 
callidice, the wings of which are white spotted with black, is 
common in the Alps of France, in Savoy and Switzerland, and 
