ART. 9 WEST INDIAN" BUPRESTIDAE EISHEB 5 



splendid color of many of the species which compose it. The species 

 are generally elongate and more or less cylindrical, although soone 

 H are very robust and appear ungraceful in form, but this is compen- 

 I sated by the incomparable richness of their colors and markings, 

 and for this reason they have been named " Eichards " by some of 

 the older authors. The larvae are variable in form, and live in both 

 living and dead plants, and the adults are found feeding on the 

 flowers and foliage of various plants, or sunning themselves on the 

 trunks of trees during the warmer part of the day. 



The genera as defined in the following paper may be tabulated 

 as follows: 



KEY TO THE GENEKA 



1. Sternal cavity formed entirely by the mesosterniim (tribe Polycestini)_ 2. 

 Sternal cavity formed by the mesosternnm and metasternum, or entirely 



by the metasternum 3. 



2. Scutellum visible; tarsal claws simple Polycesta Solier. 



Scutellum invisible ; tarsal claws dentate Acmaeodera Eschscholtz. 



3. Sternal cavity formed by the mesosternnm and metasternum ; lateral 

 branches of the metasternum elongate 4. 



Sternal cavity formed nearly or entirely by the metasternum lateral 

 branches of the metasternum very short and compressed on the sides 

 or invisible 22. 



4. Antennal pores diffused upon both sides of the serrate joints (tribe Chal- 

 cophorini) 5. 



Antennal pores concentrated in a pit on the serrate joints 11. 



5. First joint of posterior tarsi short, only a little longer than the second 

 joint 0. 



First joint of posterior tarsi long, as long, or nearly as long as the fol- 

 lowing two joints united 7. 



6. Prosternal process longitudinally grooved Psiloptera Solier. 



Prosternal process not longitudinally grooved Euchroma Solier. 



7. Tarsi more or less depressed 8. 



Tarsi laterally compressed Pelecopselaphus Solier. 



8. Pronotum with a longitudinal median groove or carina 9. 



Pronotum without a logitudinal median groove or carina. 



Chrysesthes Solier. 



9. Hind margin of posterior coxae strongly dentate between two emargiua- 

 tions Hilarotes Thomson. 



Hind margin of posterior coxae normal, not dentate 10. 



10. Prosternal process longitudinally grooved Chalcophora Solier. 



Prosternal process not longitudinally grooved- Halecia Castelnau and Gory. 



11. Front of head narrowed by the insertion of the antennae (tribe Chryso- 

 bothrini ) 12. 



Front of head not narrowed by the insertion of the antennae (tribe Bupres- 

 tini) 13. 



12. Third tarsal joint armed with two long spines Actenodes Lacordaire. 



Thiixl tarsal joint unarmed Chrysobothris Eschscholtz. 



13. Metasternal epimeron entirely uncovered 14. 



Metasternal epimeron partially concealed by the lateral prolongation of 



the abdomen 19. 



