14 PROCEEDINGS OF THE NATIONAL MUSEUM vol.89 



15. Metasternum near middle trochanters with a cluster of very 



coarse punctures, which are not a continuation of lateral sculp- 

 ture 19. strigicauda Bates 



Metasternum evenly and sparsely punctured on median area, 

 without such a cluster of very coarse punctures 16 



16. Form slender ; pronotum with a shallow median longitudinal 



groove on basal half; median portion of metasternum mod- 

 erately coarsely punctured 12. gracilis (Melsheimer) 



Form robust ; pronotum without median groove ; median portion 

 of metasternum very finely punctured 17 



17. Metasternum except for median portion and a narrow area adja- 



cent to posterior coxae finely to coarsely sculptured ; anterior 



femur beneath coarsely and sparsely punctured 16. cribrithorax Bates 



Metasternum finely and densely sculptured near extreme lateral 

 margin only ; anterior femur with a few coarse punctures near 

 posterior apical margin 18 



18. Size large, length more than 4.5 mm; ninth elytral interval 



(sutural=flrst) densely punctulate, tenth Interval impunctate. 



18. darlingtoni Hintou 

 Size small, length less than 4.5 mm ; ninth interval not noticeably 

 more densely punctate than tenth 17. liogaster Bates 



19. Pronotal punctures in any area more or less uniform in size ; that 



is, at no place is there a mixture of coarse and very fine 



punctures 20 



Pronotum with coarse punctures densely or sparsely placed, 

 always with an admixture of very fine punctures scattered 

 between coarse ones 22 



20. Elytra bicolored, sutural to fifth and seventh intervals piceous 



on disk, sixth and eighth to tenth intervals and apex broadly 



luteous ; pronotal punctures coarse 21. jamaicensis, new species 



Elytra uniform piceous to black 21 



21. Luster subopaque, elytral intervals moderately coarsely punc- 



tured, pronotal punctures coarse, length up to 4 mm. 



11. subopacus, new species 

 Luster shining, elytral intervals very finely punctured, pronotum 

 strongly transverse, finely and densely punctured, length 5 mm 

 or more 13. elongatus (Palisot) 



22. Metasternum with small patch of setigerous punctures 23 



Metasternum without setae 24 



23. Setae confined to anterior half of median area of metasternum ; 



pronotum not strongly convex from side to side, its marginal 



setae unusually long 25. sulcatulus (Chevrolat) ( 6 ) 



Setae confined to posterior half of median area of metasternum ; 

 pronotum normally convex, its marginal setae not unusually 

 long 14. edwardsi, new species 



24. Lateral intervals and apices of elytra conspicuously setose 25 



Lateral intervals and apices of elytra with at most a few minute 



setae, visible only with high magnification 26 



25. Middle femur with deep and entire marginal groove ; middle and 



posterior femora coarsely punctured in apical half 22. aciculus Hinton 



Middle femur without marginal groove; middle and posterior 

 femora finely and sparsely punctured 23. versicolor Schmidt 



