SCIENCE BULLETIN, No. 19. 



Sphaerococcus cantentulatus, n.sp. (Fig. 3). 



These coccids attack the youug brauchlets of the weeping myall {Acacia 

 pendula), growing in the Condobolin district, New South Wales, causing 

 them to swell out into gouty excrescences, irregularly rounded, up to an 

 inch in length and one-eighth of an inch in diameter. These thickened 

 twigs are hollow, containing a row of gall chambers, each separated from 



Fig. 3. — ^phaerocnrcux canteiittilaius, n.sp. 



the other. The adult female rests in the centre, upon an oval depression 

 or scar, through which there is sometimes an aperture ; the outer surface of 

 the gall mass marked with tubercles corresponding with the depressions 

 inside the gall chambers. 



Adult female reddish brown, semi globular, wrinkled, with the abdominal 

 segments reduced to a point at the apex ; legs and antennae aborted. 



Sphaerococcus casnarinae, Maskell. 



Trans. N. Zealand ImtiliUe, vol. xxiv, p. 39, pi. viii, f. 8-20, 1891. 



The type specimens were described from Victoria, where they were found 

 upon the basal portion of the galls of Cylindrococcus casuarinae, formed 

 upon the branchlets of Casuarinae quadrivulvis. I have found them in 

 the same situation on casuarinas growing on the cliffs at Newport, New 

 South Wales. 



