132 



NATURAL HISTORY OF INSECTS. 



as a hinge, allowing the posterior part to be lifted when the 

 male emerges. Example The Citrus- scale (Fig. 314). 



Fig. 314. 



Genus PARLATORIA (Targiom Tozzetti). 



The scale of the female is either circular or elongated, with 

 the exuvia? large and at the anterior end. The scale of the 

 Fig. 315. male is enlongated, its sides nearly parallel, 



and the exuviae at the anterior end; there 



is no cariiia on the middle of the back 

 this part being seldom higher than the 

 sides. 



The margin of the last segment of the 

 female is crenulated and fringed witn toothed scale-like plates; 

 there are only four groups of spinnerets. Example Per- 

 gande's Orange-scale (Fig. 315). 



Genus UHLEEIA (Comstock). 



This genus included species in which, upon the scale of the 

 female, only one larval skin is visible at the anterior extremity; 



