196 THE COCCIDAE 



e. Body 5 mm. in diameter, color mahogany brown, shining, 

 with three distinct dark brown lines across dorsum, black 

 spots apparently wanting. California on Quercus chryso- 



lepsis. shastensis Ehrh. 



ee. Body 4 to 4.5 mm. in diameter; color brown, shining, 



dotted with black spots. Arizona on Quercus 



ceriferus Ehrh. 



dd. Body three millimeters in diameter; color dark gray, dull 

 not shining, with fine black lines upon dark yellowish brown 

 surface and with depressed darker spots. Massachusetts on 



Quercus ilicifolia. perryi King. 



aa. Body always naked, never sparsely setaceous or covered with wax. 

 b. Insects of large size, 7 to 10 mm. in diameter. 



c. Body with transverse furrows and with rounded protuberances, 

 with three protuberances, one mesal in each transverse row; 

 8 mm. long and 7.5 mm. broad; color white with dark brown 

 mottling, usually with white dorsal band. Colorado, New 



Mexico on Quercus undulata. gilletti Ckll. 



cc. Body not with transverse furrows and without protuberances, 

 d. Body globular, 10 mm. diameter; surface dull, peppered or 

 mottled irregularly with black, grey and white, white areas 

 with numerous minute brown spots. Mexico on Quercus 



engelmanni. grandis Ckll. 



dd. Body subglobular, 7 mm. in diameter; marked with five 

 transverse black bands composed of large round dots and 

 fine lines, pebbled and marbled with black dots and specks 

 between lines and dots, entire surface covered with minute 



black specks. California on Quercus. mirabilis King. 



bb. Insects of smaller size, 3 to 6 mm. in diameter. 



c. Body convex without median longitudinal constriction, 

 d. Body strongly convex, 5 mm. in diameter and 5 mm. high, 

 distinctly pyriform; surface shining, with three to five dark 

 lines, color light brown with three to four dark brown 

 bands of variable length and suffused dark brown, blotchy 

 spots and round dots. Massachusetts, Ohio, Indiana, Georgia 



on Quercus. andrei King. 



dd. Body globular or nearly so, never pyriform or conical, 

 e. Body variously marked, but not with light or dark bands, 

 f. Body strongly elevated, 5 to 6 mm. high. 



g. Body dark, dirty gray, turning to nearly clear white 

 in old weathered specimens, with black spots and 

 minute black specks; 6 mm. high and 6 mm. long. 



East of Rocky Mountains on Quercus 



galliformis Riley. 



gg. Body dark, irregularly marbled with white and 

 black and reddish or black and reddish, minute 



