A. E. Verrill — The Bermuda Islands. 



809 



were still actively creeping about. She also sent an orange fruit, 



which is thickly covered with the same scale and has become hard 



and woody, with the rind black and deeply wrinkled and pitted, but 



it still adheres to the twig, showing very plainly the destructive 



effect of this scale, both on the tree and fruit. See pi. xcvi; figs. 



4-6. 



1826 



Figure 182«. — Purple Scale ; a, winged male ; b, active young, female ; e, adult 

 scale ; all enlarged ; after Glover. Figure 1826. — Purple Scale of Orange 

 {Mytilasjns citricola) ; much enlarged ; a, female scale, empty ; b, the same, 

 under side, showing eggs; c, male scale ; after Comstock. 



* 



These scales are mostly long-ovate, acute at one end, variable in 

 breadth, and frequently one-sided or curved, thus in shape not unlike 

 an elongated American oyster-shell. The color of the adult female 

 scales is dull reddish brown or purplish brown ; the smaller female 

 scales and the male scales are similar in form, but are lighter brown. 



Orange Chionaspis. (Chionaspis citri Comst.) 



Figure 182, c. Plate XCVI ; Figures 5, c ; 6, c. 



Associated with the preceding were considerable numbers of much 

 smaller, white, elongated-oblong scales (fig. 182, c) which have a 

 median rounded ridge or carina along their whole length. They 

 have been determined as the males of this species by Mr. Nathan 

 Banks. The species is widely distributed. It is said to be the most 

 abundant and injurious species on the orange trees in Louisiana. 

 (See Insect Life, v, p. 282.) 



The females are very similar to those of A. citricola, but are 

 flatter and more abruptly widened posteriorly, this expanded part 



