EXPLAXATIOX OF PLATES. 



Cottony Grass Scale. Eriopeltis festuccE (Fonsc). 

 Figure i. Egg sacs on Red-top. 



" 2. Upper surface of Tune-grass blade. Enlarged. Showing 

 the number and position of young scales on !May lo, 1905, 

 twelve days after the active larvae were liberated in green- 

 house. 



" 3. Under surface of same blade on same date. 



" 4. Active larva x 120. Ventral view. Showing normal insect 

 appendages. 



" 5. Young scale x 44. Ventral view. Scale taken August 17, 

 1904. Showing atrophied condition of antennae and legs. 

 6. Egg X 80. 



" 7. Full grown female scale. Xatural size. Removed from sac 

 before any eggs were deposited. 



" 8. Pupa of male scale x 55. Taken August 17, 1904. 



