130 THE COCCIDAE 



dorsal longitudinal rows of cerari-like struc- 

 tures. Macrocerococcus Leon. 



ii. Body with fourteen pairs of cerari and with- 

 out dorsal longitudinal rows of cerari-like struc- 

 tures. Macrocepicoccus Morr. 



hh. Adult female with claws distinctly toothed; body 

 at most only rarely with more than eighteen pairs 

 of cerari. 



i. Adult female provided with large cerores sur- 

 rounded by three short spine-like setae, cerores 

 opening in short processes which are arranged 

 in longitudinal rows; each ceroris excreting a 



long glassy thread of wax Heliococcus Sulc. 



ii. Adult female not provided with large cerores 

 surrounded by three spine-like setae opening in 

 projections arranged in longitudinal rows, 

 j. Adult female with tricerores and round ceror- 

 es; antennae of adult female consisting of 

 eight or nine segments, usually nine; body 



usually with eighteen pairs of cerores 



Phenacoccus Ckll. 



jj. Adult female with round cerores only; an- 

 tennae of adult female consisting of nine seg- 

 ments; body with only two pairs of cerores, 



these located at the caudal end of abdomen. 



Heterococcus Ferris. 



ff. Body of adult female not covered with mealy or granu- 

 lar wax, but with wax fused to form plates or lamellae; 

 antennae of adult female consisting of nine segments; 

 claws of adult female with tooth; body usually with 

 eighteen pairs of cerari. Ceroputo Sulc. 



dd. Anal ring of first stage nymphs with six anal ring setae and 

 of adult female with more or less than six anal ring setae. 



e. Anal ring of adult female with two minute anal ring setae. 



Ehrhornia Ferris, 

 ee. Anal ring of adult female with twenty-four to thirty anal 



ring setae. Tra'butina Marchal. 



cc. Anal ring bearing eight or more anal ring setae, 

 d. Anal ring bearing eight anal ring setae. 



e. Antennae of adult female with nine segments; tarsal 

 claws with tooth at middle; body of first stage nymphs not 



with row of blunt dorsal setae. Puto Sign. 



ee. Antennae of adult female with less than nine segments; 



tarsal claws simple, not with tooth; body of first stage 



nymphs with rows of blunt dorsal tubercles. 



f. Body of adult female naked; antennae of adult female 



consisting of seven segments. Rhizococcus Sign. 



