West Attstralian Coccidm. 465 



72. Aspidiotus dryandi'ie, sp. n. (Plate XV, fig. 41.) 



Scale of 9 sub-circular, rather flat, diameter about 0'12 inch. 

 Exuviae more or less central and inconspicuous. The scale is 

 externally of a dirty fawn-colour, the inner surface being pure 

 white. 



Adult $ claret- brown : last segment yellow, with 6 lobes well 

 developed and as wide as long ; the median pair adjacent, the 

 largest, notched on either side of the apex, the lateral notch being 

 the deeper ; second pair deeply incised once on lateral margin ; third 

 pair conical with sinuous sides and more removed from the second 

 than the second from the median pair ; with the exception of several 

 small notches the rest of the margin is finely serrate. Plates absent. 

 Median spines inconspicuous ; second, third, and fourth pairs distinct, 

 Circumgenital pores absent. 



On Dryandra fioribunda. Swan River. 



73. Aspidiotvs nweus, sp. n. 



Scale of $ circular, very convex, pure white ; diameter 0'04 inch. 

 Exuviae light yellow, central, often hidden by the secretion of first 

 stage. 



Adult 9 bright yellow, somewhat globose, of normal form, abdo- 

 men ending in a pair of adjacent, sharply truncate lobes, on either 

 side of which is a small fringe of simple, hairy plates ; the spines, 

 with the exception of the median pair, are long and hairlike. 



^ puparium small, white ; larval skin yellow. 



On Acacia pulchella. This species is closely allied to 

 A. ccratus, but differs in the form of the lobes and in the 

 absence of the widely forked spine. 



74. Aspidiotus perniciosus, Comstock. 

 On peach and apple, in two isolated instances only. 



75. A. pemiciosus, var. eiicalypti. 



Scale of ? pyriform, very slightly convex, purple-black when in 

 situ, length 0'045, width 0'035 inch. Exuviae bright red, often 

 surrounded by a ring of white secretion. At the posterior end of the 

 scale there is a crescent-shaped piece of grey secretion which gives 

 the pyriform shape. 



Adult $ with median lobes converging, well-developed and faintly 

 crenulate on their lateral margins ; second lobes small, more or less 

 triangular, and notched twice ; third lobes almost obsolete ; half-way 

 towards the penultimate segment there is a fairly strong, wide, 



TRANS. ENT. SOC. LOND. 1899.— PART IV. (DEC.) 31 



