BY THOMAS G. SLOANE. 201 



Hab. — Queensland. I found two specimens on the margin of the Nor- 

 manby River at Kings Plains cattle station. 



The striation is as follows : 1 entire, 2 — -i reaching nearly to base, 6 and 7 

 abbreviated basad, 3 — 7 successively shorter distad, and not extending on to 

 apical macula. Allied to T. buprestioides SI., but difJEering by size smaller; pro- 

 thorax with sides more rounded, more narrowed to base, juxta-basal sinuosity 

 a little stronger, anterior angles less marked : elytra with seventh stria well 

 developed on the piceous space between the maculae, humeral macula spreading 

 over fifth and eighth interstices at base, apical macula extending inwards to 

 third stria. 



Tachys bipu.stitlatus Macleay. 



Bembidium bipuslidatum, Macleay, Trans. Eut. Soc. N.S. A\"ales, ii., 1871, p. 

 116 (non Sloane, 1896). — T. froggatti, Sloane, Proc. Linn. Soc. N.S. Wales, xxi., 

 1896, p. 362. 



The late Rev. Thos. Blackburn drew my attention to the fact that Macleay's 

 desciiption of jT. biptistulutiis suited my T. froggatti better than the species to 

 which I assigned it in 1896, and, on reading that description with both these 

 species before me, I found this opinion correct. I then again examined the 

 specimens of Masters' collecting from Gayndah in the Australian Museum, which 

 must be taken to be those Macleay had before him, and found there were two 

 specimens gummed on one card which were of the two species under discussion. 

 Before I knew T. bipiuHulatii-s, I had compared the specimen I had of the 

 species I now name T. solidus with these specimens from Gayndah, and, finding 

 it agreed with one of them, had not noticed what the other was; as a result, 

 the species which I had wrongly identified bore the name T. biptistulatus Macl., 

 in my collection, when I got the true T. bipustulatus in 1896, so I regarded 

 this as an undescribed species. It is evident that Macleay's statements "thorax 

 narrowed behind" and "legs, palpi and antennae yellow" are more applicable 

 to the species I called T. froggatti than to that identified by me in 1896 as T. 

 bipiistulatiiji; therefore, Blackburn's view must be upheld. 



TACHY.S .SOLIDUS, n.Sp. 



T. bipustulatus, Sloane {non Macleay), Proc. Linn. Soc. N.S. Wales, xxi., 

 1896, p. 363. 



Robust, oval, convex. Front shortly bi-impressed. Prothorax transverse, 

 wider across base than apex; sides lightly rounded anteriorly, a little narrowed 

 and .subsinuate to base; basal angles rectangular; a curved transverse impression 

 across base. Elytra ovate, convex, 5-striate; striae simple, first entire, 2 — 5 not 

 reaching base, 3 — 5 successively shorter distad, not extending on to apical 

 declivity, eighth entire, deep; ninth interstice convex; disc bipunctate on third 

 interstice; a pimcture on inner side of apical striole far back. Shining bronzed 

 black; elytra bimaculate towards apex; antennae infuscate, basal joint tes- 

 taceous, second and third joints subtestaceons with a dark median ring; legs 

 light brown, femora darker than tibiae. Lengfh, 2.9; breadth, 1.9 mm. 



Hab. — Queensland: Laura River (Sloane), Tow-nsville (Dodd), Gayndah 

 (Masters); N.S. Wales: .Junee (Sloane). Habits riparian. 



Very like T. bipustulatus Macl., with wliich Macleay (and Masters, too), 

 confused it (c/. under T. bipustulatus, supra), but differing by prothorax a little 

 more rounded on sides, and a little more narrowed to base; elytra with five 

 (not six) inner striae present. 



