92 ASPIDIOTUS CAMELLIA. 



HemiberlesifL (Aspidites) camellias, Leonard!; Gen. 

 e sp. di Diaspiti. Est. da. Rivista di Patologia 

 Vegetale, 1897 [VI], 1900 [VIII], p. 23. 



Puparium of the female (PL III, figs. 6, 8) high 

 convex; limpet-shaped; oblong or broadly pyri- 

 form; anterior portion highest, apex usually curved 

 towards the front margin. Texture partaking some- 

 what of the character of the food-plant, owing to the 

 admixture of hairs and surface tissues, which the 

 female separates and mixes with the secretion. On 

 hard-wooded plants, such as the Camellia, the scale is 

 free from the admixture of foreign substances. K \ 1 1 v ue 

 at the apex of the scale, which is towards the anterior 

 margin ; and in the curved or limpet-shaped examples 

 it occupies an almost vertical position ; colour dark -red 

 brown or piceous. Secretionary coverings circular ; 

 the first forming a central boss and ring of white 

 secretion, the second, of the same colour as the first, is 

 without design. 



Ventral scale complete, with a central circular de- 

 pression ; pure white, and rarely stained ; and in the 

 last stage it becomes very thick and readily separates 

 from the dorsal portion, but usually remains attached 

 to the food-plant, forming a small conspicuous white 

 spot (PI. Ill, fig. 8). 



Greatest diameter 1 2*50 mm. 



The puparium of the second-stage female is circular, 

 with the exuviae central. 



Female adult (PI. Ill, fig. 7). Short, ovate, narrowed 

 and slightly produced behind; segmentation distinct. 

 Colour bright yellow or orange yellow; apex of pygi- 

 dium red brown. At the advanced stage of gestation 

 the insect becomes broadly ovate, the segmentation dis- 

 appears almost entirely, and the ova can be seen in the 

 interior of the body as small purplish-brown bodies. 

 Pygidium (PL IV, fig. 3) widely rounded and rather 

 short. Circumgenital glands absent. Subdorsal tubular 

 spinnerets, very short, filiform, and number from five 



