60 



THE REPORT OF THE 



No. 1^ 



The adult female scale is very difficult to distinguish from the San 

 Jose, The San Jose, however, has the exuviae light brown, the Cherry has 

 orange exuviae. The immature San Jose scales are often dark and have a 

 distinct nipple, with a ring or depression around it; the immature Cherry 

 scales are much the same color as the mature scales and there is not the 

 same prominent nipple and encircling ring. Furthermore the San Jose scale 

 discolors the fruit, bark and cambium layer, the Cherry scale does not. 



:^o-i. 



•■0"r b C «> 



Fig. 10. Anal plate of Forbes Scale, showing lobes, incisions, thickenings, and spines; 

 also anal opening (2), vaginal opening (1), and ventral glands (3). Notice that the 

 median lobes approximate at apex, and that the inner thickening at first incision 

 is very large and club-shaped. 



Fig. 20. Forbes or Cherry Scale, (a) Young scale, light colored, with central nipple but 

 no circular groove ; (&) adult female scale witli central or nearly central, orange- 

 colored nipple, and gray outer margin of scale ; (c) male scale, showing the oval 

 shape, and nipple near one end. The body of the insect is under the scale. 



