THE MONTHLY BULLETIN. 



99 



Food Plants. — ^Walnut, apple, pear and lemon. "Works under the 

 bark and in crevices upon the tender cambium layer. 

 Control. — Same as for the citrus mealy bug. 



CITRUS OR GREENHOUSE MEALY BUG. 



Pseudococcus citri (Risso). 

 (Pigs. 7S-S4.) 



c£. i>- c. 



Pig. 78. — Immature stages of the male citrus mealy bug. a, young just hatched 

 from egg; b, young after cocoon is finished; c, nearly matured. (Essig, P. C. 

 Jr. Ent.) 



Fig. 79. — Adult males of citrus mealy bug. A, with wings folded in normal attitude; 



B, wings spread. (Essig, P. C. Jr. Ent.) 



General Appearance. — Small mealy-coated soft-bodied insects, from 

 one fourth to three eighths inches long and two thirds as wide. They 



