The classes of Insects : 1. Lepidoptera. 2. Diptera. 3. Hymenoptera. 4. Coleoptera 

 5. Orthoptera. 6. Hemiptera. In the centre, Neuroptera. 



CHAPTER I. 



CLASSIFICATION OF INSECTS IN GENERAL. 



EVERY one must have observed that there is a greater re- 

 semblance between some two of the various insects with 

 which he is acquainted, than between some other two : thus 

 a butterfly more nearly resembles a moth than a moth re- 

 sembles a beetle, or than a butterfly resembles a beetle. 

 Again, two different kinds of butterfly more nearly resemble 

 each other, than either of them resembles a moth ; the same 

 with two moths ; and the same with two beetles. Now no 

 one with the slightest idea of similarities would place the 



