200 



SYSTEMATIC ARRANGEMENT 



of the plans now zealously advocated by a few natur- 

 alists in this country promise to answer this end, forms 

 no part of our present purpose to enquire. In com- 

 mon with all others hitherto proposed, they recognise 

 certain primary divisions of the class, many of them 

 corresponding, or nearly so, to those established by 

 Linnaeus ; these divisions, therefore, as forming the 

 most generally approved basis of arrangement, and of 

 fundamental importance in every point of view, we 

 design to explain at some length, and illustrate by a 

 variety of examples. They are termed Orders, and 

 are the first subdivision of the class. The following 

 is a tabular view of them, with concise distinctive 

 characters. 



iff 



sfi 



organised 

 for gnaw- 

 ingoings 



organised 

 for suck- 

 ng,wings 



'of unequal f transversely, COLEOPTER 

 consistency, i 



the under \ longitudinally, ORTHOPTEI 

 pair folded ! 



of equal ( reticulated > NEUROPTEI 



consistency, 1 ve ined $T HYMENOPT 



iea >\hairy, TRICHOPTE 



^ STREPSIPTB 



f not clothed with scales, HEMIPTER. 



S ( clothed with scales, . LEPIDOPTER 



two DlPTERA. 



undergoing metamorphosis, . . . APHANIPTEB 



no metamorphosis, J mandib l a ted, THYSANOUR 



(suctorial, . . PARASITE 



Each order is generally subdivided into compre- 

 hensive Sections according to the number of joints in 

 the tarsi, structure of the antenna, conformation of 



