No. 4.] 



THE SAX JOSE SCALE. 



389 



of an inch in diameter, and dark mottled with gray in color, 

 with a small elevated spot at or near the centre, which is 

 black or yellowish. 



The male scale is " black, somewhat elongated when fully 

 formed. The larval skin is 

 covered with secretions ; 

 its position is marked by 

 a single nipple-like promi- 

 nence, which is between the 

 centre and the anterior mar- 

 gin of the scale. The scale 

 of the male is more abun- 

 dant than that of the female. 

 It is often oval in shape 

 and smaller in size than 

 the female." 



When these scales occur 

 in large numbers on the 

 twigs (Fig. 2) or leaves 

 they frequently overlap, 

 and are not easily distin- 

 guished without a magnifying glass 



Pig. 2. — San Jose scales of natural size on 

 an apple branch ; scales somewhat enlarge J 

 on apple bark to the left above. 



The general appear- 



Fig. :;.— Male Insect of the Sau Jose scale, greatly enlarged. 



ance which they give is of a greenish, very slightly rough- 

 ened scurvy deposit. The natural color of the limbs of 



