58 ORDERS OF INSECTS. 



or Spring-tails, which are also mandibulate, are fur- 

 nished with two or more bristles at the tail. 



As this little book is intended especially as an in- 

 troduction to the study of British Entomology, and 

 the principal English writers upon this branch of 

 science usually adopt a system very similar to that of 

 which a sketch has just been given, this mode of clas- 

 sification will be adopted in the following pages, espe- 

 cially as, from its dealing only with the characters 

 presented by Insects in their perfect state, it is per- 

 haps rendered more intelligible to the beginner ; but 

 for my own part, I must confess that I think, the 

 adoption of the metamorphosis as the foundation of 

 the arrangement of Insects, leads to a more philoso- 

 phical result. To give the reader an opportunity of 

 judging for himself, I have subjoined a tabular view 

 of the arrangement of the orders thus obtained : 



Section I. METABOLA. 

 Order I. Coleoptera. 

 II. Strepsiptera. 



III. Hymenoptera. 



IV. Lepidoptera. 

 V. Diptera. , 



VI. Aphaniptera. 



Section II. HEMIMETABOLA. 



Order VII. Neuroptera. 



VIII. Orthoptera. 



IX. Physopoda.- 



X. Rhynchota. 



Section III. AMETABOLA. 

 Order XI. Anoplura. 

 XII. Mallophaga. 

 XIII. Thysanura. 



