A New Eriococcus 



E. 0. ESSIG 



SECKETAEY STATE COMMISSION OF HOETICTJLTUEE, 

 SACRAMENTO, CALIFOBNIA 



Eriococcus cockerelli n. sp. 



Description — The adult females are enclosed in a thin, felt- 

 like, nearly globular sac varying in color from pure white to 

 pinkish and averaging three-sixteenths of an inch in diameter 



Figure 1. Eriococcus 



cockerelli n. sp. Adult females in situ on twig. Twice 

 enlarged. (Original). 



(Fig. 1). The body is oval in shape being slightly longer than 

 broad and distinctly convex on the upper surface. The color of 

 the dried specimens received is deep purplish red, turning 

 cardinal wlieu first boiled in K H but subsequently becoming 

 colorless and perfectly transparent excepting the spines, legs, 

 mouth-parts and antennae which remain light brown or amber. 

 The body is thickly covered with stout spines, there being three 

 common sizes (Fig. 2, B) of the following lengths: 0.05 mm., 

 0.037 mm. and 0.028 mm. The length of the type specimen is 



