42 Aspidiotus. 



Very closely allied to (possibly only a variety of) A. thece, Maskell, found on 

 stems of tea plants in Assam. The latter has a more convex puparium, the 

 body of the female is comparatively broader, and the lateral lobes of the 

 pygidium are proportionately much smaller than in A. trilobitiformis. Allied 

 also to A. eucalypti, Maskell ; A. articulatus, Morgan ; and A. rtifescens, 

 Cockerell, which form a section characterised by the distinct separation of the 

 prothoracic from the mesothoracic segments. 



EXPLANATION OF PLATE IV. 



Aspidiotus trilobitiformis. 



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



Fig. I. Insects, nat. size, on leaf. 



2. Egg. 



3. Female puparium. 



4. Adult female, dorsal view. 



5. „ „ ventral view. 



6. Pygidium of adult female, dorsal view. 



