Explanation of Plate 9. 



Fig. i. Portion of edge of pygidium of Hemichionaspis dracaenae. 

 Fig. 2. Portion of edge of pygidium of Hemichionaspis scrobicularum. 

 Fig. 3- Portion of edge of pygidium of Hemichionaspis theae. 

 Fig 4 Marginal gland prominence from Hemichionaspis scrobicularum 



showing how the edge is drawn out into a spine, resembling a 



gland-spine. 



Fig. 5. Portion of edge of pygidium of Hemichionaspis minor. 

 Fig. 6. Median lobes of Hemichionaspis minor strachani. 

 Fig. 7. Portion of edge of pygidium of Hemichionaspis rhododendri. 

 Fig. 8. Median lobes of Hemichionaspis aspidistrae showing variation. 

 Fig. 9. Portion of edge of pygidium of Hemichionaspis aspidistrae. 

 Fig. 10. Portion of edge of pygidium of Hemichionaspis mussaendae. 

 Fig. ii. Portion of edge of pygidium of Hemichionaspis minor showing 



second lobe quite well developed. 



Fig. 12. Dorsal gland-orifice of Hemichionaspis scrobicularum. 

 Fig. 13. Dorsal gland-orifice of the smaller variety from Hemichionaspis 



scrobicularum. 



