BY F. W. GODING 



Legs ferruginous, tips of tarsi piceous. 



Long. (J 6, 9 7; lat. (? 2, 9 2.^ mm. 



Food plant, Acacia decnrrf'us. 



Hah. — Tasmania (Walker) : Camden Haven, Penrith, Sydney, 

 N.S.VV. (Froggatt); Queanbeyan, Bungendore, N.S.W. (Lea") : 

 South Australia (Tepper). 



This species is easily recognised by the slender form, and the 

 ferruginous stripe on the tegmina. 



■^D. GRACILIS, sp.nov. 



Head piceous, nearly square, the apical portion nearly as broad 

 as the base, sides foliaceous; ocelli on a line with the centre of the 

 eyes, nearer to the eyes than to each other. 



Prothorax piceous brown, punctured with black, with a distinct 

 median carina; it rises vertically from the base, over each lateral 

 angle furnished with a strong, quadrangular, black, nearly erect 

 horn, which is inclined lightly outward, strongly forward, the 

 sides parallel nearly to the apex, which is broadened, truncate, the 

 inner angle slightly rounded, the outer angle produced in a blunt 

 point; the truncated surface is marked with four reddish carinse; 

 the posterior process is very slender, lightly sinuous, acuminate, 

 exceptionally long, reaching beyond the tips of the tegmina, the 

 apical fifth bent a little upward. 



Tegmina long, very narrow, vitreous, with piceous veins ; the 

 interior discoidal cell longer than exterior, the last four apical 

 cells with their bases in a line, the first placed nearly at the 

 middle of the exterior border; clavus vitreous, with two piceous 

 veins. 



Tibi» reddish, all dilated; tarsi tawny. 



Long. 9 7^; lat. U mm.; lat. inch lat. corn. 3^ mm. 



Described from one female. 



Type in Coll. F.W.G. 



Hah. — West Australia (Lea). 



The species may be easily recognised by the long, very slender 

 form, the vitreous tegmina, and the dilated tibi?e. It is closely 

 3 



