152 SCIENCE BULLETIN, No. 18. 



Opistkoscelis verrumda, Froggatt. 



Pro. Linn. Soc. N.S.W., vol. viii, p. 338, pi. xvii, figs. 3-5, 1893. 

 Agric. Gazette, N.S.W., vol. ix, p. 498, 1898. 



The male and female galls upon the leaves of an undetermined species of 

 Eucalyptus, growing at Napoleon Eeef, near Bathurst, New South Wales. 



Female galls green, nipple-shaped, slightly corrugated, single or in threes 

 and fours ; opening on the underside of the leaf. Height, quarter of an inch ; 

 diameter at base, one-sixth of an inch. 



Male galls forming smaller wart-like excrescences, slightly conical at the 

 centre ; single or in groups of two or three ; often aborting the whole leaf 

 into a thickened mass. 



Adult female bright red ; upper surface circular, slightly concave, covered 

 with white down. Under surface much wrinkled ; segmental division distinct ; 

 apical segment with an anal ring, and four curved spines, forming a tail. 

 Hind legs large, stout, tarsal joints as long as the whole coccid. 



162. Opistkoscelis verricula. Cat. Coccidse, p. 47. 



