3G4 ON THE AUSTRALIAN BEMBIDIIDES. 



Head smooth ; frontal impressions long, straight, diverging 

 backwards, extending forward to labrum; eyes prominent, hemi- 

 ispherical. Prothorax Isevigate, convex, short, transverse, widest 

 just behind anterior marginal punctvire; basal part defined by a 

 transverse impression; sides lightly rounded anteriorly, gently 

 narrowed to base, meeting base at right angles; base sloping 

 lightly forward on each side to posterior angles; lateral border 

 reflexed, becoming wider towards base; median line obsolete; a 

 flattened depressed space near each basal angle; a light transverse 

 linear impression (hardly punctulate) connecting the lateral basal 

 depressions. Elytra much wider than jDrothorax, oval, truncate 

 at base (shoulders rounded), convex, declivous to base ; strise 

 simple, first entire, second as strongly impressed as first, not 

 reaching base or apical declivity, a deep lateral stria besides 

 marginal channel on each elytron. Anterior tibiae oblique above 

 apex on external side, a spiniform spur above obliquity. 



Length 2, breadth 1 mm. 



Hab. : N.S. Wales— Tweed River (Lea; March, 1892), Coota- 

 mundra District (Sloane). 



At a casual glance this species might be taken for a small form 

 of T. histriatus, Macl., but it differs decidedly from that species 

 by having a second stria outside the sutural one extending fi'om 

 the anterior discoidal puncture to the apical declivity and by 

 the shape of the prothorax, which is much wider at the base 

 and has the basal angles rectangular, the sides not having a 

 pi'ominent angular projection above the base as in T. histriatus. 

 It is somewhat like T. ovetisensis,^' Blkb., from which it difi'ers 

 by having a post-humeral reddish spot on each elytron; by the 

 form of the frontal impressions which are further from the e3'es, 

 narrow, and extend obliquely forward till they reach the anterior 

 margin of the clypeus; by the sides of the prothorax being less 

 rounded on the sides and wider at the base. 



* In T. ovensensis, Blkb., the head and prothorax are similar in shape, 

 &c., to those of T. striolatus, Macl. 



