34 



SCIENCE BULLETIN, No. 19. 



Genus LVI. Palaeococcus, Cockerell. 



Canadian Entomologist, vol. xxvi, p. 36, 1894. 

 Entomologist, vol. xxxv, p. 233, 1902. 



This genus includes species that were previously described in other different 

 genera such as Icerya and Mo^ophlehus. 



Cockerell defines it as follows : " Female soft, convex, without an ovisac; 

 genital aperture large, considerably anterior to the end of the body ; antennse 

 with from nine to eleven joints. Male without caudal fleshy appendages." 



Palaeococcus aiistralis, Maskell (Fig. 21). 



Icerya rosae var. Australis, Trans. New Zealand Institute, vol. xxvi, p. 101 



1893, and vol. xxviii, p. 406, 1896. 

 Icerya australis, Cockerell, Check List, p. 323, 1896. 



Palaecoccus rosae var. Australis, Froggatt, Agric. Gazette, N.S.W., vol. xvii, p. 

 • 773, 1906. 



This mealy bug was found upon Hahea gihhosa, growing in National Park, 



near Sydney, in 1893, when I then considered it a rare species, but I have 



since found it not uncommon on this shrub in the same locality. 



Fig. 21. — Palaencoccux australis. 



The adult female is subglobular, convex on the upper surface, and measures 

 about one-fifth of an inch ; colour rich brown to black, with a row of yellow 

 spots on the margin, with another row of spots midway, so that they appear 

 to be two spots on each segment. The white cottony secretion forms a thin 

 pad beneath the coccid, a regular fringe round the dark coloured body, and 

 some scattered particles over it, but no true ovisac. The larvse are of the 

 cottony cushion scale type, red and flattish, with six-jointed antennse, and the 

 insects are attached to the main branchlets. 



