EXPLANATION OF PLATE XXXVIH. 



Chionaspis graminis. 



{All figures, except No. i, more or less enlarged.) 



Fig. I. Piece of Mana' grass, with insects in situ, nat. size. 



2. Female puparium, with reddish pellicle. 



3. Adult female, dorsal view. 



4. Male puparium, with brownish pellicle. 



5. „ „ „ powdery covering. 



6. „ „ „ pale pellicle. 



7. Female puparium, from below, showing insect and ova. 



8. Newly hatched larva. 



9. Pygidium of female, var. divergens. 



10. „ „ typical form. 



11. Female puparium, of second stage. 



12. „ „ from below, showing ventral scale intact. 



13. „ „ from above, with pale pellicles. 



