64 



E. ERNEST GREEN. 



Marginal paired pores (fig. 10, c) in a single row, rather small and inconspicuous, 

 discontinued at the base of the posterior segment, which is pygidiform (fig. 10. b). 

 Genital orifice surrounded by circular ceriferous pores. Caudal setae folded back 

 upon the venter. No trace of anal lobes or of a setiferous ring. After examination 

 of many preparations, I have been unable to locate the position of the anal orifice. 



On foliage of a palm {Livistona humilis), Stapleton, N.T. (Hill, 640). 



Distinguishable from any other known species by the peculiar characters of the 

 posterior segment. 



nov. 



? Sphaerococcus diaspidiformis, sp. 



Puparium of female (fig. 11, a, b, c) circular, convex above, with a central raised 

 boss. Texture firm and hard, of a horny consistency, resisting the action of boiling 

 potash. Surface coarsely granulate and corrugate. Colour yellowish, the central 



Fig. 11. Sphaerococcus diaspidijiormis, sp. n. ; a, puparium, from above, X 20 ; 



b, puparium, from below, X 20 ; c, puparium, side view, X 20 ; 



d, adult female, side view, x 33 ; e, adult female, after 



maceration, X 65 ; /, rostrum and spiracles, X 280 ; 



g, embryonic larva, X 280. 



boss clear and translucent. Exuviae not included in the substance of the puparium. 

 Under surface fiat, with a thin translucent pellicle revealing the form of the insect 

 withir (fig. 11, 6). Diameter I'l mm. 



The female lies loose within, the puparium, but is difficult to extract entire. Its 

 removal can be effected only by gradually breaking away the upper part of the 



