366 ON THE AUSTRALIAN BEMBIDIIDES, 



Tachys spbnceei, Sloane. 



Habits : — Found under stones besides edge of water (Spencer). 

 Hah.: Central Australia —Larapintine Region (Spencer); West 

 Australia — King's Sound (Froggatt). 



Tachys bistriatus, Macleay. 



T. (Bemhidium) bistriatus, Macl. ( = Bemhidium convexum, 

 Macl.), has a short recurved striole on the middle of the apex of 

 each elytron; the posterior angles of the prothorax form a small 

 triangular prominence on the sides a little before the base itself. 

 I have carefully compared the types of Bemhidium histriattim, 

 Macl., and B. convexum., Macl., with one another and find them 

 one species. 



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

 and Clarence Rivers (Lea). 



Tachys yarrensis, Blackburn. 



Habits : — Found under logs and debris in very damp situations. 

 Hah. : Victoria --Upper Yarra (French); N. S. Wales— Mul- 

 wala and Urana (Sloane), Tamworth (Lea). 



Tachys monochrous, Schaum. 



No doubt remains in my mind, after comparing specimens of 

 Bemhidium, punctipenne, Macl., with the description of Tachys 

 monochrous, Schaum, but that the species are synonymous. 



Habits : — Found under logs in very damp situations. 



Hah.: Victoria — Lilydale (Sloane); N. S. Wales — Windsor 

 and Tamworth (Lea), Ourimbah (Fletcher) ; Queensland — Gayn- 

 dah (Masters). 



Tachys seticollis, n.sp. 



Oval, robust. Prothorax lightly transverse, strongly narrowed 

 to base, basal angles rectangular, margin plurisetose near anterior 

 angles: elytra widely ovate; five rows of punctures and a sub- 

 marginal stria on each elytron; recurved striole of apex distinct, 

 rather short; two fine setigerous discoidal punctures on third 



