8 PROCEEDINGS OF THE NATIONAL. MUSEUM vol.65 



KEY TO THE SPECIES 



1. Elytra with longitudinal costae between the rows of coarse punctures — 2 

 Elytra without longitudinal costae, but with rows of fine punctures; color 



shining cyaneo-viridis, with purple reflections. (Jamaica) 



cyanipes (Fabricius). 



2. Pronotum with two large opaque impunctate spots on the disk. (Cuba) 



cubae Chevrolat. 

 Pronotum without opaque impunctate spots 3 



3. Elyti'a with distinct scutellar costae, more or less abbreviated between the 



suture and first discal costa 4. 



Elytra without, or with only feebly indicated scutellar costae 9. 



4. Each elytron with four or five distinct smooth longitudinal costae, not 



including the scutellar one 5. 



Each elytron with two or three distinct smooth longitudinal costae, not 

 including the scutellar one 8. 



5. Elytral costae more distinctly elevated than the intermediate reliefs. (Ba- 



hamas, Cuba) goryi Saunders. 



Elytral costae hardly more distinctly elevated than the intermediate reliefs; 

 the costae and reliefs nearly equally distinct 6. 



6. Elytra black, sometimes with a bluish or purplish tinge 7. 



Elytra rusty brown, with the lateral margins and costae black. (Santo Do- 

 mingo or Dominica) regularis Waterhouse. 



7. Elytra black, the punctures subelongate and rather irregularly placed. 



(Cuba) chevrolati Thomson. 



Elytra black, with a bluish or purplish tinge, the punctures subrectangular 

 and more regularly placed. (Jamaica) perfecta Kerremans, 



8. Pronotum angulated on the sides, feebly impressed at middle and with the 



posterior angles fitting closely to the elytra; above green, the elytra fer- 

 rugineous, with a greenish or aeneous tinge along suture ; beneath cyaneo- 

 viridis. (Jamaica) gossei Waterhouse. 



Pronotum broadly rounded on the sides, with a large deep median depression, 

 and the posterior angles widely separated from the elytra ; above black 

 with a cupreous tinge, the elytra ferrugineous with an aeneous tinge along 



suture; beneath aeneo-purpureous. (Bahamas) manni Fisher. 



9 Elytra with the scutellar costae feebly indicated 10. 



Elytra with the scutellar costae entirely absent 11. 



10. Form broad and robust, about two and one-fifth times as long as wide ; pros- 

 ternum coarsely, sparsely punctured. (Santo Domingo.) 



porcata (Fabricius). 

 Form more narrow and elongate, about two and two-thirds times as long as 

 wide; presternum finely and densely punctured. (Cuba.) 



angulosa Jacquelin Duval. 



11. Elytral costae more distinctly elevated than the intermediate reliefs — 12. 

 Elytral costae hardly more distinctly elevated than the intermediate reliefs, 



the costae and reliefs almost equally distinct. (Jamaica.) 



olivieri Waterhouse. 



12. Form broad and robust, about two and one-fifth times as long as wide; 



elytral punctures very coarse and deep. (Santa Lucia. Guadeloupe.) 



depressa (Linnaeus). 



Form more narrow and elongate, about two and two-thirds times as long as 



wide; elytral punctures finer. (St. Thomas) thomae Chevrolat. 



