THE COCCID^; OF CALIFORNIA. 



PLATE III. 



7.' 



I //. 



' F, 



I 



FIG. 1. PYGIDIUM OF FEMALE DIASPIN^E. 



Circumgenital glands or spinnerets (in groups 



1, 2, 3). 



1. Median group. 



2. Upper laterals. 



3. Lower laterals. 



4. Genital aperture. 



5. Anal aperture. 



6. Spine-like plates. 



7. Spines. 



8. Fumbriated plates. 



9. Third pair lobes. 



10. Second pair lobes. 



11. First or median pair 



lobes serrate. 



12. Tubular spinner- 



ets. 



13. Trumpet - shaped 



filiform spin- 

 nerets. 



14. Trumpet - shaped 



tubular spin- 

 nerets. 



15. Marginal promi- 



nence. 



16. Abdominal seg- 



ment. 



FIG. 2. BODY OF FEMALE 



1. Head. 



2. Prothorax. 



3. Mesothorax. 



4. Metathorax. 



5. 6, 7. Abdominal seg- 



ments. 



8. Pygidium. 



9. Antennae. 

 10. Rostrum. 



11. Anterior spiracles. 



12. Rostral setae. 



13. Posterior spiracles. 



14. Spinnerets or cir- 



cumgenital 

 glands. 



15. Genital aperture. 



16. Pores of tubular 



spinnerets. 



d. T. P., del. 



VENTRAL SURFACE OF SCALE INSECT; SHOWING VARIOUS ORGANS. 



