BUPRESTIDAE. 151 



groups themselves are scarcely different from those previously 

 adopted by me. 



I would arrange the groups represented in our fauna into the 

 following tribes : — 



A. Hind coxae with the plates distinctly dilated internally, cut off externally 



by the prolongation of the abdomen ; their anterior margin straight, 



the hind margin oblique ; 

 Mesosternum divided. Bupeestini. 



Mesosternum emarginate, not divided. Thkincorygini. 



B. Hind coxa? with the plates scarcely dilated internally ; 



Front not narrowed by the insertion of the antennae ; thorax truncate 

 at base ; 



Mesosternum emarginate, not divided. Julodini. 



Mesosternum scarcely visible. Haplostethini. 



Front narrowed by the insertion of the antenna? ; thorax lobed at the 



base. Agrilini. 



Tribe I.— BITPRESTIIVI. 



The front is usually not contracted by the insertion of the 

 antennas, but in Chrysobothres is as much so as in the tribe Agri- 

 lini ; the prosternum is sometimes obtusely, sometimes acutely 

 angulated on the sides, behind the coxre, and its lateral sutures 

 are oblique ; the mesosternum is always divided, so that the 

 cavity for the reception of the prosternum is formed both by the 

 meso- and metasternum ; the side pieces of the latter are always 

 visible, and the epimera are triangular, with the hind margin 

 sometimes straight, and applied to the coxae, sometimes partly 

 covered by the prolongation of the abdomen, which intervenes 

 between the coxa? and the margin of the body. The hind coxae 

 are broader internally ; their anterior margin is straight and 

 transverse ; the hind margin is oblique. The antennal pores are 

 diffused on the sides of the joints in the first group, concentrated 

 in marginal foveas in the others. The species are mora or less 

 flattened in form. 



Our groups are the following : — 

 Epimera of metathorax triangular, uncovered ; prosternum obtusely angu- 

 lated behind the coxa? ; ■ 



Mesosternum and metasternum closely united. Chalcophor^;. 



Mesosternal suture distinct. Bupkestes. 



Epimera of metathorax partly covered by abdomen ; prosternum acutely 

 angulated behind the coxae ; 



Front not contracted by insertion of antennae. Axthaxije. 



Front contracted by insertion of antennae. Chrysobothkes. 



