DIALOGUE XXXIX. 
HIPPOBOSCA. 
MOTHER, The different stages, Lucy, 
by which insects usually arrive at their 
perfect state, are no doubt familiar to 
you by this time r 
Lifcy, The egg, mamma, is the first 
stage; from it the larva proceeds; then 
comes the pupa ; and then the fly : but 
among the muscae you said there were 
some kinds, which produced their larvae 
at once. 
Mother. I shall now describe a family, 
in which the animal brings forth its 
young in the imago, or perfect state, and 
of full size. 
Lucy, Like calves and lambs, which 
are born perfect creatures r 
