102 



FAMILY COCCIDID^. 



Group — Diaspidin^. 



Genus — Aspidiotus, Boiichc. 

 Female puparium varying in colour, circular in outline, usually- 

 flat, sometimes rather convex ; pellicles central. 



Male puparium elongated, not carinated ; pellicle at one end. 



Aspidiotus eucalypti, sp. nov. Plate xii., fig. 1. 



Female puparium (tigs. 1 and a and b), circular, slightly convex, 

 dirty-^^'hite in colour ; diameter averaging -^\ inch. The pellicles 

 in the centre are very inconspicuous. 



Male puparium (c) narrow, elongated, semi-cylindrical ; colour 

 Avhite, the pellicle yellow ; not carinated above. Length nearly 

 5-V inch. 



Adult female (d) of the usual pegtop-shape of the genus, but 

 with a deep transverse groove about one-third of the distance 

 from the cephalic extremity, which divides it into two unequal 

 portions. The other segments are not conspicuous. Colour dark 

 brown. The abdomen is not overlajDped by the anterior segments 

 as in some species. Length, -^-^ inch ; diameter almost the same. 

 Abdomen (e) ending in two median lobes, and at each side some 

 short hne hairs. No groups of spinnerets, but rows of spin- 

 nerets are arranged along the last three segments, and there are a 

 few others scattered. After pressure, as shown in the figure, the 

 pygidium is seen to extend for some distance within the edge of 

 the abdomen, and is of a bright yellow. 



Adult male not known. 



The puparia of the females are found thickly aggregated in 

 masses on the bark, with the males interspersed. 



Tliis species is clearly distinguished by the deep transverse 

 groove on the female, as shown in figs, b and d. The male pupa- 

 rium is also narrower, and more cylindrical than usual. 



Habitat, — On Eucalyptus (various kinds). South Australia ; 

 often found intermingled with the next insect, Chionaspis 

 assimilis. 



Genus — Chionaspis, Sig7ioret. 



Female puparium usually, but not always, white ; elongated, 

 generally nearly flat ; pellicles at one end. 



Male puparium elongated, white, carinated ; pellicle at one 

 end. 



Chionaspis assimilis, sp. nov. Plate xii., fig. 2. 



Female puparium (figs. 2 and a and b) elongated, pyriform, 

 slightly curved, scarcely convex ; colour dark brown, the pellicles 

 at one end yellow. Length, about —^q inch. 



