PLATE I.i MATURE INSECTS. 



Fig-, i, Cricket ; 2, Earwig ; 3, Aphis ; 4, Scolytus ; 5, Anthrax ; 6, Balaninus ; 

 7, Cynips ; 8 Ant ; 9, Wasp. 



1 The figures on the first four plates are principally borrowed from 

 Mr. Westwood's excellent "Introduction to the Modern Classification 

 of Insects." 



