CHAMKLION FLY. SOD 
and others have, in addition, two late- 
ral hairs, one fastened to each of the 
antennae. 
Lucy, What does lateral mean ? 
Mother. Growing out of the side is to 
grow laterally; in the common house 
fly you may distinctly see those lips at 
either side of its trunk, w^hen eating. 
The musca chamaleon'*^ is the first spe- 
cies which I shall mention. It lays its 
eggs in the hollow stalks of rushes^ and 
other aquatic plants. The shape of the 
larvae, which come from these eggs, is 
very remarkable : from the mouth the 
body gradually increases in thickness for 
about one third of its whole length, and 
then tapers towards the tail, where it 
again expands, something like that of a 
fish. Round the tail are placed thirty 
feathered filaments, or hairs, which never 
become wet, though under water ; and in 
the centre, from whence they diverge, 
there are two spiraculce. The body is 
* Plate XXII. 
