32 A MONOGRAPH OF THE AUSTRALIAN MEM lillAC I D.E, 



truncated, the inferior angle being acute; the inner and anterior 

 surfaces with little carinas; lateral angles prominent; posterior 

 process long, slender, straight, the apex a little decurved, reaching 

 the tip of the abdomen, but much shorter than the tegmina. 



Tegmina broad, ferruginous, costa and base punctured and 

 opaque, the third apical cell of corium with several transv^erse 

 venules; clavus punctured at base, gradually narrowed to apex, 

 with two veins. 



Chest and abdomen piceous, covered with dense white 

 pubescence. 



Legs piceous. 



Long. (J 7, 9 9; lat. J^ 2, 9 .3 mm. 



Types in Collections of Serville, Signoret and Lefebre, British 

 Museum, and W. W. Saunders. 



Hab. — New Holland (Fairmaire) : Hobart, Tasmania (Lea) : 

 Gisborne (French); Port Phillip, Victoria (Walker) : Brisbane, 

 Q. (Tryon). 



This is the most common species in Tasmania. 



*D. viTTA, Walk. 



(Plate i., fig. 25). 



1851, Centrotus vitta, Walk., List Hom. Brit. Mus. p. 626. 

 1858, Oxyrhachis coiitorta, Walk., Ins. Saunds. Hom. p. 66. 



Head triangular, ferruginous, punctured, ocelli on a line with 

 the centre of, and much nearer to each other than to the eyes. 



Prothorax ferruginous, lightly pubescent, vertical in front; the 

 lateral horns almost erect, triquetrous, much more widely 

 separated at the apices than at bases; two carinse on the inner 

 surface; apices much broadened, outer angle acutely produced, 

 inner angle rounded; posterior j)rocess long, slender, sinuous at 

 the middle, apex reaching almost to the tips of tegmina. 



Tegmina long, clear, lanceolate, base ferruginous, and punctured; 

 veins, and a broad longitudinal stripe along the middle of corium, 

 ferruginous, the discoidal cells of equal size; clavus gradually 

 acuminate, the base, a large spot at the middle and one at the 

 apex, ferruginous. 



