Aspidiotus. 6 1 



beyond the genital aperture. A series of four irregularly linear bodies extends 

 transversely across the base of pygidium. No grouped glands. There are a 

 few tubular spinnerets of the filiform type opening on the dorsal surface by a 

 short series of pores extending from the second marginal notch on each side. 

 Size about vii by 075 mm. 



Adult male unknown. Prof Comstock mentions, with respect to his A. 

 rapax, that dead and shrivelled males have been observed. 



Embryo fully formed within the body of the parent before extrusion. 



The young larva {figs. 7 and 9) is bright yellow, with colourless eyes. Form 

 broadly oval ; abdominal segments crowded together ; pygidial segment large 

 and anal aperture conspicuous. Antennae {fig. 9) slender, two longish hairs at 

 extremity and one or two shorter ones on each joint. A pair of prominent 

 serrate lobes at posterior extremity {fig. 11). Caudal setae about three-quarters 

 the length of the body. 



Habitat on stems and leaves of tea {fig. 15), cinchona, acacia, osbeckia, ivy, 

 and other plants ; Punduloya, Newera Eliya, Kandy. Sometimes occurring in 

 such numbers as to completely cover the surface of the parts affected. Found 

 apparently in all parts of the world. A rather serious pest on tea in Ceylon, as 

 it chiefly attacks the young plants of the first and second year, greatly hindering 

 their growth. I have seen a young cinchona tree actually killed by this insect. 



The species does not seem to be much infested with hymenopterous parasites. 



EXPLANATION OF PLATE XIIL 



Aspidiotus camellia. 

 {All figures, except Nos. 15 a7jd 18, vioj-e or less enlarged.) 



Figs. I, 2, 3, and 4. Consecutive stages in development of female puparium. 



5. Female puparium, side view. 



6. „ „ from below, with ventral scale removed. 



7. Newly hatched larva, dorsal view. 



8. „ „ „ ventral view. 



9. Antenna of larva. 



10. Leg „ „ 



1 1. Extremity of abdomen of larva. 



12. Adult female, dorsal view. 



13. „ „ „ „ ^ before oviposition. 



14. „ „ ventral view. 



15. Tea twig, with insects in sUtt, nat. size. 



16. Pygidium of adult female. 



17. Rudimentary antenna of female. 



18. Cinchona branch, with colony of insects, nat. size. 



