370 ON THE AUSTRALIAN BEMBIDIIDES, 



prominent, their summit acute ; lateral basal fovese obsolete. 

 Elytra wider than prothorax, oval, very convex, declivous to 

 peduncle, truncate on base; shoulders rounded, not marked; two, 

 or at most three, lightly impressed strise near the suture, first 

 entire, lightly punctulate on disc, others only marked on disc (not 

 reaching base), lightly punctulate ; space between stria? and 

 margin smooth and without discoidal punctures; recurved striae 

 of apex obsolete; marginal channel not deep along sides; three 

 strong punctures near margin behind each shoulder, and two 

 strong submarginal foveiform impressions on apical third. 



Length IT, breadth 0-75 mm. 



Hah. : N.S. -Wales — Tweed River, Windsor (Lea). 



The afiinity of this little species is to T. niitcheUi, SI., from 



which it diiFers by its smaller size; dark coloured elytra; shorter 



and less oblique frontal impressions; elytra with only two or three 



stride next the suture marked, the remaining part smooth (the 



striie are linear and hardl}^ punctulate, not rows of punctures as 



in T. mitchelli), &c. 



Tachys leai, n.sp. 



Elongate-oval ; prothorax convex, transverse, subcordate, 

 narrower between posterior angles than at apex; elytra depressed, 

 truncate at base, finely punctate-striate. Black, shining; legs 

 and under surface piceous brown; antennae piceous brown at base, 

 infuscate towards apex. 



Head convex, smooth; front and vertex minutely punctulate; 

 front bi-impressed; the impressions long, straight, deep, hardly 

 diverging backward, extending forward to base of labrum; space 

 between frontal impressions convex ; clypeal suture obsolete ; 

 clypeus declivous to labrum; eyes convex, not very prominent. 

 Prothorax a little wider than head, transverse, widest a little 

 before the middle, lightly narrowed to base, convex, Ifevigate; 

 anterior margin truncate; base truncate across peduncle, a little 

 oblique on each side behind posterior angles; sides unequally 

 rounded on anterior three-fourths, shortly sinuate before posterior 

 angles; these acute, prominent, placed a little before the actual 



