BY THOMAS G. SLOANE. 369 



punctures, the anterior hardly noticeable among basal punctura- 

 tion, the posterior on Ijevigate portion of elytra a little before 

 apical declivity ; external margin of apical striole carinate ; 

 marginal channel finely punctate; boi'der passing round humeral 

 angle on to base as far as fourth stria. 



Length 2, breadth 8 mm. 



Flab. : West Australia — Darling Eanges, Bridgetown, Pinjarrah 

 (Lea). 



Allied to T. semistriatus, Blkb., but diifering in colour; its more 

 elongate shape; the prothorax with posterior angles more promi- 

 nent and explanate; the elytra proportionately narrower, less 

 strongly punctate, with fewer punctures in the rows, especially 

 the fifth and sixth. 



Tachys ovatus, Macl. 



T. {Bemhidium) ovatus, 'Msicl., — Be/nbidium bifoveatum, Macl.; 

 I have seen the types and find these two species synonymous. It 

 has a distinct recurved striole at apex of each elytron. Though 

 usually of a pale testaceous colour, a specimen that is subpiceous 

 has been sent to me by Mr. A. M. Lea, as coming from the 

 Tweed River. 



Habits : — Under stones in very damp situations. 



Hab. : Queensland — Gayndah (Masters); N.S. Wales — Tweed 

 River, Clarence River, Inverell, Tamworth and Sydney (Lea). 



Tachys australicus, n.sp. 



Robust, very convex. Prothorax convex, transverse, rounded 

 on sides, a little wider across base than aj^ex; elytra very convex, 

 lightly striate near suture, sides smooth. Head and prothorax 

 red or testaceous red, eyes black, elytra piceous or piceous black. 



Head smooth, convex ; front with two rather wide nearly 

 parallel impressions ; space between these impressions convex. 

 Prothorax smooth, transverse, convex ; sides strongly rounded 

 without any sinuosity before posterior angles, oblique to base on 

 each side behind posterior angles ; basal area short, convex, 

 defined by a strong transverse impression; posterior angles not 



