3-44 NOTES ON THE FAMILY BRACK YSCELID.E, 



(J. Unknown. 



Hab. — Bathurst on EucalyjAus melliodora; Manly on E. rohusta; 

 Thoruleigh on E. piperita; Sutherland on E. resinifera (Froggatt). 



This is a very variable species, the galls also often differing 

 much in shape and size, but I believe these are only local varieties 

 of the same thing, 



Opisthoscelis mammularis, n.sp. (PI. xvi. figs. 15-16). 



9. Gall 3 J lines high, 2 lines in diameter at the base; red to 

 reddish-brown, tinged with green, broad at the base, constricted 

 about two-thirds up and swelling out into a rounded nipple, upper 

 portion of gall solid, walls thin on the sides, chamber small and 

 irregular, basal orifice on underside of leaf, very irregular, on 

 a reddish warty pustule. 



9. Coccid dull yellow, head and thoracic segments large, 

 rounded, the abdominal segments very small and narrow, all 

 covered with long curly white hairs, with other shorter straight 

 ones forming a fringe round the anal segment, tip of anal segment 

 bearing two small reddish-brown spines curved backwards, forming 

 a tail \ legs rather short. 



9. Coccid (mature) rounded, wrinkled, greyish-brown, tapering 

 towards the anal tip : hind legs pale yellow ; femora short 

 rounded ; tibise long, stoutest at the base ; tarsal joint long, 

 filiform, three times as long as tibiae, the apex not quite truncate 

 as in the others, but coming to a point. 



(J. Galls green, forming slightly raised lumps about 1 line in 

 diameter, generally three or four galls forming in clusters, on the 

 underside of the leaf forming conical funnel-shaped excrescences 

 broadest at the base, truncate at the tip ; orifice large, the inner 

 margins of the opening crenulated and irregular. 



^, Coccid unknown. 



Uah. — Bendigo, Yic, on Eucalyptus sp. (Froggatt). 



Opisthoscelis fibularis, n.sp. (PI. xvi. figs. 17-21). 



9. Gall brown, pyriform, growing upon the leaves, often in 

 great numbers, 2 lines high, 2 lines in diameter, the base forming 



