COLEOPTERA. 169 



for the illustration of the effects of habit in producing 

 the various compHcations of developmental history ob- 

 servable in the life-histories of insects, and especially 

 the modifications by reduction occurring in parasites.^ 



1 " Larval Habits of Blister-Beetles," Trans. St. Louis Acad. 

 Sciences, Vol. III., p. 552. 



