CICADAS, SCALES, APHIDES, ETC. 377 



of the bristles — or, at least, they may be closely 

 adpressed. 



There are two sub-orders — (1) Homoptera, (2) 

 Heteroptera. 



SUB-ORDER HOMOPTERA. 



(Cicadas, Scales, Aphides, Froghoppers, etc.) 



Characters: (a) The wings, when at rest, are held 

 in a roof -like manner over the body, (b) The whole 

 front wing is of the same texture, (c) In the scale 

 insects the front wings only are present in the 

 male; the females are wingless. 



