JVest Australian Coccidx. 467 



78. Parlatoria viridis, sp. n. 



Scale of 9 elongate, rounded behind, form constant ; exuviae ter- 

 minal, naked ; the first brown and about ^ the size of the second, 

 which is a viridian green, oval and equal to half the length of the 

 whole scale ; secreted portion white, occasionally light brown against 

 the second cast skin. Length 0-06 inch. 



Adult $ rounded-ovate, brown, shrivelling after egg-laying to half 

 tlie size of the second of the exuviae. Last segment presenting the 

 following characters :— 6 conspicuous tri-lobate lobes, the incisions on 

 either side of the apex being deep and the bases of the lobes much 

 narrowed. Spines inconspicuous. There are two oblong narrow 

 plates, serrate at the apex, between the median lobes ; 2 between 

 the first and second lobes, and 3 between the second and third 

 lobes ; the plates immediately beyond the third lobes are narrowed 

 at the base, widest near the middle and taper to the apex ; they are 

 deeply incised and may be described as palmate. The plates extend 

 only to the penultimate segment. The anterior groups of circum- 

 genital pores are contiguous with the posterior, so that there are 

 apparently only two elongated groups which are constricted at about 

 the middle, 23—26 pores. The merging of the groups into one is a 

 constant feature. Length 0-05 inch. 



^ puparium elongate, slightly convex ; larval skin terminal, 

 viridian green ; the rest white. Length 0-04 inch. 



On Pittospoo'um sjy., Perth. This species causes a yellow 

 stain upon the leaves and affects the growth of the infested 

 plants considerably. It approaches P. inttospori, Maskell, 

 the scales differ, however, in colour and also in the position 

 of the exuvise. The fringe of plates in P. pittospori is also 

 said to extend to the rostral region. In external appear- 

 ance viridis appears to more nearly approach P. myrtus, 

 but the second of the exuviae is conspicuously large, 

 whereas in the latter it is not. 



79. Parlatoria zizyp)hi, Lucas. 



This species has not apparently become acclimatised in 

 West Australia, though it is nearly always present upon 

 lemons brought from the Mediterranean and upon 

 "Pomelos" {Citrus decumana) from Singapore. 



80. Parlatoria dryandrig, sp. n. (Plate XV, fig. 42.) 

 Scale of ? elliptical, exuvise terminal. Length 0"05, width O'OS 

 ilich. Larval skin blackish-brown, cast of second stage dark brown 



