Buprestis, Trachys, and Elater. 



251 



from the present insect. The surface of the elytra appears 

 covered with minute imbricated points, which are more acute 

 and obvious towards the tip. 



3. B. arcuata. Dark bronze ; elytra black ; thorax with an 

 elevated line at the posterior angles. 



Description. Body slender : head punctured, with a longi- 

 tudinal indented line, and obsolete indentation each side on 

 the front : thorax inequal, transversely confidently punc- 

 tured ; an elevated, arcuated line, extends from the poste- 

 rior angle almost to the middle of the lateral margin : 

 scutel transverse and transversely carinated : elytra indent- 

 ed at base ; at tip rounded and denticulated : beneath dark 

 greenish, polished, particularly on the venter. 



Length three-tenths of an inch. 



Of a similar form to the preceding species ; but it is alto- 

 gether destitute of the marginal coloured line of the thorax, 

 and those of the elytra ; the elevated line of the thoracic an- 

 gles also distinguishes it. The imbrication of the elytra is 

 similar to the preceding species. 



4. B polita. Cupreous, polished ; thorax with an elevated 

 line at the posterior angles. 



Description. Body slender, highly polished, cupreous : 

 head tinged with green, punctured ; longitudinal indented 

 line obsolete : antenna blackish : thorax a little inequal ; 

 transversely confidently punctured ; an elevated, arcuated 

 line extends from the posterior angle almost to the middle 

 of the lateral margin : scutel transverse and transversely 

 carinated : ehjtra indented at base ; at tip rounded and 

 denticulated. 



Length rather more than one-fifth of an inch. 



