104 THE COCCIDAE 



e. Cerores small, in clusters of three to thirty-six, average 

 fifteen; length of body 3.5 to 4.75 mm. Texas, Arizona, 



New Mexico, Montana, Mexico on Opuntia confusus Ckll. 



ee. Cerores small, in clusters of four to thirty, average thir- 

 teen; length of body 2.5 to 3.0 mm. Colorado, Texas, 



Arizona on Opuntia. newsteadii Ckll. 



dd. Truncate setae stout, shorter, cylindrical, diameter of prox- 

 imal end usually more than one-half the total length of 

 seta; cerores in clusters of one to thirty, average fifteen; 

 length of body 2.5 to 3.5 mm. Cape Colony, South Africa on 

 Opuntia. capensis Green. 



Epicoccus Ckll. This genus contains a single species, acaciae 

 Maskell from West Australia on Acacia. The species appears to be 

 similar to those of the genus Coccus but lacks the truncate setae. The 

 absence of an anal ring with anal ring setae in all stages excludes it 

 from the Eriococcinae and the presence of legs in the adult female from 

 the Cylindrococcinae. The highly colored naked body, according to 

 Fuller one of the most beautiful of the Australian coccids, the body-wall 

 bearing only a few cerores, and the six segmented antennae in the adult 

 female and first nymphal stage are characteristic. 



