346 Mr. F. P. Pascoe on neiv Genera and Species of 



In outline resembling the last, but differently coloured, with 

 the prothorax shorter and much broader at the apex, the inter- 

 vals of the rows on the elytra minutely punctured, &c. 



Amarygmus exilis. 



A. angusto oblongus, nitidus ; prothorace trapezoidali, viridi-metal- 

 lico ; elytris elongatis, aureo-viridibus, in certo situ eupreo- 

 resplendens, leviter seriatim punctatis. 



Hab. Lachlan River. 



NaiTowly oblong, nitid, slightly convex ; head green in 

 front, blackish towards the clypeus ; eyes remote ; antennas 

 short, stout, ferruginous, the last six joints thicker and longer 

 than the two preceding, the third only a little longer than the 

 fourth ; prothorax metallic green, trapezoidal, the sides nearly 

 straight, the base not much broader than the apex ; scutellum 

 equilaterally triangular, black ; elytra rather long, but much 

 broader than the prothorax at the base, the sides nearly pa- 

 rallel, finely seriate-punctate, bright golden-green with copper 

 reflections ; body beneath light chestnut, glossy ; legs dark 

 chestnut ; tarsi ferruginous. Length 3£ lines. 



A much narrower form than any of the preceding, with 

 shorter antennae. 



Amarygmus indigaceits. 



A. oblongus, subnitidus ; prothorace nigro, angulis anticis acumi- 

 natis ; elytris cyaneis, distincte seriatim punctatis ; antennis 

 tarsisque obscure testaceis. 



Hob. Sydney, 



Oblong, a little nitid ; head black, rather coarsely punctured; 

 eyes somewhat approximate ; antennae dull testaceous, the last 

 four joints shorter and a little thicker than the others ; pro- 

 thorax rather narrow, shining, minutely punctured, the ante- 

 rior angles produced and pointed ; scutellum triangular, black ; 

 elytra broadest at the shoulders, very gradually narrower pos- 

 teriorly, indigo-blue, rather finely seriate-punctate, the inter- 

 vals of the striae narrow ; body beneath and legs chestnut- 

 brown, slightly glossy ; tarsi dull testaceous. Length 3| lines. 



Allied to A. picicornis and A. tarsalis; the former, inter 

 alia, has varying metallic elytra, and the latter a different 

 prothorax and coarsely punctured elytra. 



Amarygmus Cupido. 



A- oblongo-ovalis, nitidus ; prothorace nigro ; elytris laete violaceis, 

 certo situ cyaneo-resplendens, leviter seriatim punctatis. 



llab. Queensland, 



