240 THE GENERA AND SPECIES OF AMYCTERID.E, 



49. — Taladrinus lacunosus, 



Oblongo-ellipticus niger parce cinereo-sqaamosus, thorace tuber- 

 culato, elytris costatis interstitiis latis foveatis foveis 

 irregularibus subquadratis. 



Long. 10 lin., lat. 3| lin. 



Hab. Manning River. 



I have never seen but one specimen of this well marked 

 species. The tubercles on the thorax are larger than in the 

 preceding species and not so crowded. The " costse " of the 

 elytra are a little irregular, seeming as if they had been pushed 

 out of their places by the lai^ge quadrangular fove^ on each side 

 of them. 



50. — Talaurinus scaber. 



Oblongo-ellipticus niger parce cinereo-squamosus, thorace valde 

 rugoso-tuberculato, elytris valde rugosis costatis interstitiis 

 irregulariter foveatis apice mucronatis. 



Lon. 11 lin., lat. 4| lin. 



Hab. Swan River. 



The thorax has the medial line clear, the rest of the surface 

 being covered with tortuous looking tubercles. The elytra have 

 much of the sculpture of the last species, but are rougher and 

 more irregular. 



51. — Talaurinus alternatus. 



Oblongo-ellipticus niger parce squamosus, thorace confertim 

 tuberculato, elytris costatis interstitiis latis bifariam punc- 

 tatis interstitio primo sex tuberculis dlstantibus seriatim 

 instructo secundo 4-tuberculato apice breviter mucronatis. 



Long. 10 lin., lat. 3| lin. 



Hab. New Holland. 



The alternation of "cost^" and tubercles on the elytra is 

 the most conspicuous character in this insect. There are six 

 distant shining hemispherical tubercles between the rows of 



