Mr. F. P. Pascoe on some Australian Colydiidae. 465 



Dark reddish brown, somewhat opake ; head with crowded oblong 

 punctures ; prothorax longer than broad, coarsely punctured, anterior 

 angles prominent, a short groove at the base, the disk slightly depressed 

 and marked with two small semicircular impressions ; elytra strongly 

 punctate-striate, with three lateral alternate interstices forming raised 

 lines or costse ; body beneath reddish brown, strongly punctured ; legs 

 reddish ferruginous. Length 3^ lines. 



Narrower than Bothrideres illusus, and more opake ; the prothorax 

 more depressed, with two distinct impressions and a punctation 

 wholly different. 



Bothrideres tamiatus. 



B. rufo-fuscus, nitidus ; prothorace rude punctato ; basi trisulcato, disco 

 biimpresso ; elytris rufo-brunneis, sutura fusca. 



Hub. Melbourne. 



Dark-reddish brown, shining ; head closely and coarsely punctured ; 

 prothorax coarsely punctured, longer than broad, the anterior angles 

 prominent, disk rather depressed, with two deep semicircular impres- 

 sions, the space between not punctured in the centre, behind the pos- 

 terior impression a broad shallow canal, and on each side of the canal a 

 slight groove ; elytra reddish brown, shining, the suture dark brown, 

 punctate-striate with the alternate interstices raised ; body beneath red- 

 dish brown, coarsely punctured ; legs reddish brown ; palpi testaceous 

 yellow. Length 2± lines. 



Bothrideres vittatus, which resembles this species in the dark- 

 coloured suture, is at once distinguished by its prothorax being 

 without any impressions, except that the whole disk sinks down, as 

 it were, leaving only a slight median elevation at the base. 



Bothrideres musivus. 



B. fulvo-brunneus, nitidus; prothorace fortiter punctato, disco late de- 

 presso, medio vix elevato ; elytris fulvo-castaneis. 



Hub. Melbourne. 



Light-yellowish brown, shining ; head thickly punctured ; eyes black; 

 prothorax longer than broad, coarsely punctured, anterior angles not 

 prominent, the disk with a large, oblong, shallow, somewhat parallelo- 

 grammic impression, slightly raised at the base and in the middle, 

 where it is smooth and without punctures ; elytra uniform pale yellow- 

 ish brown, shining, striate-punctate, three lateral alternate interstices 

 costaeform ; body beneath darker brown, and rather sparsely punctured. 

 Length 2 hues. 

 Smaller and the colour more uniform and paler than in Bothrideres 



vittatus ; the depression on the prothorax larger and less divided by 



the medio-basal ridge. 



