324 TRANSFORMATIONS OF INSECTS. 
which look like horns, belong to the family of the Cerambycide. 
The adults are made for walking well, and they have usually 
THE METAMORPHOSES OF Chalcophora Mariana. 
The adult insect is represented as crawling upon a branch of a fir-tree, which is more 
or less riddled and hollowed into tunnels or galleries. The larva and chrysalis are 
also shown. 
very strong, and indeed occasionally enormous, mandibles, dif- 
ferently toothed according to the species, and the jaws of the lower 
lip present many decided modifications of form, according to 
the peculiar habits of the insects. The beetles are leaf-eaters, 
