THE COCCIDAE OF SOUTHWESTERN UNITED STATES 41 



Genus CEROPLASTES Gray. 



Ceroplastes irregularis Ckll. 



Fig. 19. 



Type host and locality. On Sarcobatus (?) six miles north of Mon- 

 tezuma railroad station, Chihuahua, Mexico. Recorded from various 

 species of Atriplex throughout the southwest. 



Material examined. From Atriplex sp., near Las Cruces and 

 Springerville, N. Mex. ; Barstow and Lone Pine, Cal. ; from Eurotia lan- 

 atum near Atolia, Cal. ; from Atriplex confertifolia near Lancaster, Cal. 



Habit. The specimens from Las Cruces and Springerville, N. Mex. 

 (part of those from the former locality having been determined by Pro- 

 fessor Cockerell as this species), are nearly hemispherical in form, 4 to 

 5 mm. high and as many broad at the base, of a dark brown ground- 

 color variously mottled with white. 



B 



Fig. 19. Ceroplastes irregularis Ckll.: A, antenna of adult female; B, spines of 

 stigmatic depression; C, foot of adult; D, anal plates, left half dorsal, right 

 half ventral. 



