Maskell. — On Coccidse. 103 



forms, I am confirmed in my opinion that they are all only 

 variations of one species. The larva of var. levis seems to be 

 less near to the type than that of var. pilosior, but its adult 

 form is nearer. 



EXPLANATION OF PLATES III.-VIII. 

 Plate III. 

 Fig. 1. Aspidiohis casuarince, female, shovying groove. 

 Fig. 2. „ pygidium of female. 



Fig. 3. „ male puparium. 



Fig. 4. Mytilaspis forinosa, insects on leaf. 

 Fig. 5. „ group of puparia. 



Fig. 6. „ pygidium of female. 



Fig. 7. Mytilaspis spinifcra, insects on leaves, 

 Fig. 8. „ diagram of female, to show spines and 



spinnerets. 

 Fig. 9. „ pygidium of female. 



Fig. 10. Mytilaspis convexa, insects on twig. 

 Fig. 11. „ puparium, side view. 



Fig. 12. „ pygidium of female. 



Fig. 13. Mytilaspis grandilobis, puparia. 

 Fig. 14. „ pygidium of female. 



Fig. 15. Fiorinia rubra, insects on bark. 

 Fig. 16. „ puparia. 



Pig. 17. „ adult female. 



Fig. 18. „ pygidium of female. 



Plate IV. 

 Fig. 1. Lecanium (?), insect, dorsal view. 

 Fig. 2. „ antenna. 



Fig. 3. Lecanium nigrum, epidermal cells. 

 Fig. 4. Lecanium depressum. 

 Fig. 5. Lecaniicm begonia, „ 



Pig. 6. Pulvinaria maskelli, var. spinosior, insects on twig. 

 Fig. 7. ■ „ „ marginal spines. 



Fig. 8. Pulvinaria maskelli, type, marginal spines. 

 Fig. 9. Pulvinaria tecta, insects on twig. 

 Fig. 10. „ female and ovisac. 



Fig. 11. „ female, dorsal view. 



Pig. 12. „ antenna of female. 



Fig. 13. „ marginal spines and epidermal cells. 



Fig. 14. „ diagram of larval extremity. 



Fig. 15. Kermcs acacia, insects on twig. 

 Fig. 16. „ female, ventral view. 



Fig. 17. „ epidermal pustules. 



Fig. 18. „ diagram of larval extremity. 



Plate V. 

 Fig. 1. Plctnchonia hryoides, insects on bark. 

 ^ test of female, type. 



Fjg. 2. 



Fig. 3. 



Fig. 4. 



Pig. 5. 



Fig. 6. 



Fig. 7. 



Fig. 8. 



Fig. 9. 



test of male, 

 adult female, 

 extremity of female, 

 spinnerets, 

 diagram of larva, 

 antenna of larva. 



