304 TRANSFORMATIONS OF INSECTS. 
The engraving shows a green tiger beetle flying; beneath it 
there are two on the ground, and to the right hand there are 
two galleries or tunnels, each of which contains a larva, hooked 
on to the side by the peculiar structure of the fifth segment 
of the abdomen. The habits of this larva resemble those of 
the ant lion. 
The Meal Worm Beetle, whose larva is commonly called the 
Meal Worm, and which is very injurious to flour and bran, and 
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THE METAMORPHOSES OF Cicindella campestris. 
which does a great deal of mischief to ships’ biscuits, belongs 
to the family of the Pzmelide. It frequents granaries and mills, 
and especially bakeries, for it likes an elevated temperature. The 
long, cylindrical, and shining yellow larva passes its life en- 
veloped in the flour, and even makes a cell there, where it can 
undergo its transformation into a nymph. Its only virtue is 
that it makes capital bait for fishermen and a good food for 
pet birds. 
The larve are represented in the midst of the flour in the 
