CHAPTER IX. 



Cbc liemiptcra. 



THE present Order of insects, although of very limited ex- 

 tent, contains several important species, of which the noisy- 

 Cicadas, destructive Aphides, and numerous Bugs, and Lice, 

 can be cited as familiar examples. The Hemiptera may 

 be conveniently divided into the two following groups : — 



The Homoptera, comprising all the species in which the 

 anterior wings are entirely membranous, and — 



The Hetej'optcra, including those having the basal 

 portion of the anterior wings thickened, and quite opaque. 



These peculiarities have induced some entomologists, who 

 regard the structure of the wings of the greatest impor- 

 tance in classifying, to arrange the insects included in the 

 Homoptera and Heteroptera, into two distinct Orders ; but 

 their uniform character in all other respects renders this, 

 I think, hardly desirable. 



Group Homoptera. 



Family ClCADID/E. 



Cicada cingiilata 1 (Plate XX., fig. I, ia pupa). 



This beautiful insect may be found in great numbers 



1 This genus is frequently called Melampsalta. 



