48 Mr. G. Lewis on 



reddish brown ; the head, punctuation is smaller than that of 

 the thorax and more evenly set, forehead convex ; the thorax, 

 the punctures are larger on the outer parts and along the 

 base and finer and more sparse on the disk, the anterior 

 angles are minutely flavous ; the elytra are similarly punc- 

 tured and also the pygidia, but the points are a little sparse 

 on the median area of each elytron ; the prosternum is closely 

 punctured ; the mesosternum has the punctuation larger, 

 clearer, and less close, the acumination \$ obtuse and immar- 

 ginate ; the metasternum, the punctuation is much more 

 sparse, and along the posterior edge, commencing in front of 

 the posterior coxae, is an extremely fine transverse stria ; the 

 anterior tibia? are 6-dentate. 



This species is shorter and more robust than any of the 

 other Australian species known ; it resembles in outline the 

 New-World T. immarginatum, Lew. 



I have an example of T. somerseti, Mars., so named by 

 Marseul in 1879, and it has the anterior angles of the thorax 

 reddish brown, and is a much narrower species than bi- 

 guttatum. 



Bab. Cairns, N. Queensland (E. Allen). In the Hobart 

 Museum and my own collection. 



Teretriosoma centenarium, sp. n. 



Cylindricum, nigrum, nitidum, undique sat dense punctalatum ; 



antennis pedibusque obscure brunneis ; pronoto angulis anticis 



minute flavis ; tibiis anticis 5-denticulatis. 

 L. 1| mill. 



Cylindrical, subparallel, black and shining above, rather 

 densely and evenly punctured ; the thorax, anterior angles 

 are minutely flavous; the prosternum, anterior lobe some- 

 what finely marginate, surface coarsely and closely punc- 

 tured ; the mesosternum is similarly punctate, but the points 

 are not closely set, the projection is somewhat obtuse, with a 

 very fine marginal stria not very easily seen; the meta- 

 sternum is similarly pointed, but the median line is narrowly 

 free of punctures ; the anterior tibiae 5-denticulate. 



The trivial name signalizes the present year as the centenary 

 of the Argentine Republic. 



Bab. Argentina. 



'Teretriosoma striatum, sp. n. 

 Subcylindricum, baud parallelum, nigrum, nitidum, undique sat 



