226 Mr. J. S. Baly's descriptions of 



on either side behind the middle, strongly and deeply 

 punctured, the punctures irregularly congregated over the 

 surface. Scutellum trigonate, its basal margin entire. 

 Elytra scarcely broader than the thorax, sides strongly 

 lobed ; above convex, moderately thickened round the 

 scutellum, coarsely punctate-striate, the punctures on the 

 anterior half of the surface irregularly arranged in a 

 double row on each stria, finer, and placed in single rows 

 behind the middle ; interspaces transversely rugulose, 

 longitudinally subcostate on the outer margin near its 

 apex. Body beneath clothed with adpressed silvery hairs. 



Genus Rhombosternus, Suffr. 

 Rhomhosternus pretiosus. 



Elongatus, subcylindricus, ater, nitidus, capite (oculis 

 antennisque gracilissimis exceptis) thoraceque rufo-tes- 

 taceis; elytris sat fortiter, ad apicem seriatim pimctatis, 

 utrisque fascia lata prope medium, ad suturam abbreviata 

 plagaque apicali rufo-testaceis. 



Long. 2^ lin. 



Hab. — Australia. 



Face rather coarsely punctured, subrugose, vertex ob- 

 liquely strigose on either side ; labrum and palpi nigro- 

 piceous ; antenna very slender, equal to the body in length 

 in the 2 ; third and fifth joints elongate, equal, each 

 longer than the fourth ; eighth and three following joints 

 each shorter than the seventh, very slightly thickened and 

 compressed ; second to the fourth nigro-piceous, the rest 

 black ; eyes large, deeply notched. Thorax more than 

 twice as broad as long ; sides rounded and converging 

 from base to apex, anterior angles produced into a lateral 

 tooth, the hinder ones subacute ; basal margin slightly 

 bisinuate on either side, medial lobe broad, concave, 

 bi-emarginate ; upper surface transversely convex, deeply 

 and obliquely excavated on either side, sparingly impressed 

 with large deep punctures, which are irregularly congre- 

 gated over the surface, the middle disk being nearly free 

 from punctures. Scutellum trigonate, its apex broadly 

 truncate ; surface smooth, impunctate, apex with an ob- 

 scure rufous patch. Elytra oblong, scarcely broader 

 than the base of the thorax, sides only slightly lobed ; 

 upper surface thickened close to the scutellum, strongly 

 punctured, the punctures less deeply impressed and 



