12 A MONOGRAPH OF THE AUSTRALIAN MfJMniiACID.H, 



*H. DEPRESSUS, sp.nov. 

 (Plate i., fig. 24.) 



Green, tawny when dried. 



This species, in a general way, is closely related to virescens ; 

 it differs in being smaller, lateral horns shorter and stronger, 

 directed outward, not at all upward, the apical part depressed; 

 the dorsum between the horns is flat, never convex ; corium 

 destitute of a transverse venule between two ulnar veins, near 

 base. 



Long. 5 to 7; lat. (incl. lat. corn.) 2 to 3 mm. 



Described from nineteen males and females. 



Types in Coll. F.W.G. 



Food plant, Acacia decurren>^. 



Hah. — Pinjarrah, Bridgetown, West Australia (Lea): Brisbane, 

 <^. (Try on) : Sydney, Rye Bay, Kempsey, Richmond R., WoUon- 

 gong, Tweed R., Maitland, N.S.W. (Froggatt). 



This species may be easily separated from riresceus by the 

 depressed appearance of the dorsum and horns, when viewed from 

 the front, and absence of a transverse venule, near base of tegmina. 



S. BiPUNCTATUS, Fabr. 



1775, Memhracis 2-piLiictata, Syst. Ent. p. 677. 

 1781, MemhracU 2-pif.ncfata, Spec. Ins. ii., p. 318. 

 1787, Memb7'acis 2-punctata, Mant. Ins. ii., p. 265. 

 1S03, Oentrotus 2-punctatus, Syst. Rhyng. ii., p. 19. 

 1869, Sextius bij^unctatus, Stal, Hem. Fabr. ii., p. 52. 



Yellowish gray. 



Head very obtuse, short, front strongly inflexed. 



Prothorax angulate only, or tuberculate, above lateral angles. 



Tegmina tawny, a black spot on the middle of the interior 

 vein of clavus, apex furnished with many cells. 



I have not seen an example of this species, but doubt if it is 

 distinct from virescens, which would then become a synonym. 



