210 THE COCCIDAE 



The males in the wax forming species excrete an elongate 

 white sack of loose cottony filaments of wax or a small cylindrical 

 horny ferruginous sac of wax in which transformation takes place. 

 The males of three genera have been described, Capulina, Car- 

 pocliloroides, and Halimicoccus. The descriptions are incomplete, 

 but there is nothing to suggest that they differ from the males of 

 the associated subfamilies. The genera referred to the subfamily 

 Cylindrococcinae can be separated bj' means of the following 

 table : — 



GENERA OF CYLINDROCOCCINAE 

 a. Thorax of adult female with at least one pair of complete legs 

 present. 



b. Thorax of adult female with three pairs of legs, prothoracic and 

 mesothoracic pairs small and rudimentary, metathoracic pair large 

 and prominent; nymphs of first stage without rows of dorsal 



conical setae. Sphaerococcopsis Ckll. 



bb. Thorax of adult female with, only single pair of legs present; 



nymphs of first stage with rows of dorsal conical setae. 



c. Thorax of adult female with metathoracic legs present and 



prothoracic and mesothoracic legs wanting; nymphs of first 



stage with two complete rows of dorsal setae; females either 



not forming galls or living in crater-like depressions 



Capulina Sign. 



cc. Thorax of adult female with prothoracic legs present and 



mesothoracic and metathoracic legs wanting; nymphs of first 



stage with four rows of dorsal setae; females forming galls 



on plants. Cylindrocorcus Mask. 



aa. Thorax of the adult female with all three pairs of legs wanting. 



b. Abdomen of adult female emarginate at caudal end with a pair of 



anal lobe-like projections, anus located at bottom of emargination 



from which projects long glassy tube of wax. ..Ourococcus Fuller. 



bb. Abdomen of adult female not emarginate at caudal end and not 



with anal lobe-like projections. 



c. Nymphs of first sitage with dorsal longitudinal rows of conical 



setae. 



d. Antennae of adult female tuberculate, bearing terminal 



bunch of stiff setae; anal tubercles wanting but indicated by 



groups of conical setae; body with numerous setae near 



anus. Apiococcns Hempel. 



dd. Antennae of adult female wanting; anal tubercles wanting 

 and not indicated by groups of setae; body not with numer- 

 ous setae near anus Carpochloroides Ckll. 



cc. Nymphs of first stage not with dorsal longitudinal rows of 

 conical setae. 



d. Body enclosed in horny sack of wax shaped like lampshell; 

 cuticle of adult female not tuberculate and without conspicu- 

 ous cerores; antennae and legs wanting Halimicoccus Ckll. 



