130 



NATURAL ^HISTORY OF INSECTS. 



has the exuviae at one extremity. The last segment of the 

 female shows five groups of spinnerets. 



This genus closely resembles Aspidiotus regarding the form 

 of the scale of the female, but is easily distinguished from that 

 genus by the scale of the male, which is white and carinated. 

 Example The Rose-scale (Fig. 312). 



Fig. 312. 



v Genus CHIONASPIS (Signoret). 



This genus includes species in which the scale of the female 

 is long, sometimes much widened, and in which the exuviae 

 are small and at one extremity; the scale of the male is long, 

 generally white, more or less carinated, (except in C, ortholobis); 

 the sides are parallel and the larval skin is at the anterior end. 

 The last segment of the female has five groups of spinnerets. 



This genus resembles Diaspis in the form of the scale of the 



