280 BULLETIX 18 2, UNITED STATES NATIONAL MUSEUM 



foveae; eighth sternite of male emarginate; apex of posterior tibiae 

 with a ctenidiiim on inner edge only ; tarsi 5-seginented ; fourth seg- 

 ment not dilated. 



Remarks. — This genus is unusually well represented in our fauna, 

 and about half of the species are new. The classification of the sub- 

 genera is still in an unsatisfactory state, although I have attempted 

 an arrangement in a previous paper. 



The records of Scopaeus mollis Sharp from Jamaica in Gowdey, 

 1926, and of Scopcieus Ulustris Fauvel from Cuba by Leng and Mutch- 

 ler, 1914, are probably misidentifications. Until the specimens can bo 

 reexamined, they must be regarded as doubtful records. 



Of this genus from the West Indies I have seen 179 examples in the 

 British Museum, 53 in the collection of Dr. Cameron, 32 in the United 

 States National Museum, 41 from the Museum of Comparative Zoology, 

 and 116 collected by me in 1935-37. These belong to 17 species of 

 which 9 are new. One other species is known to me only from the 

 original description. 



KEY TO WEST INDIAN SPECIES OF SCOPAEUS 



1. Head, pronotum, and elytra shining, scarcely punctate or sculptured 2 



Head, pronotum, and elytra more or less densely punctate or sculptured — o 



2. Head and elytra with obsolete sculpture 18. chapini 



Head and elytra smooth and shining, as pronotum 17. pulchellus 



3. Head truncate or emarginate behind 4 



Head distinctly rounded behind 17 



4. Punctures of head "close, rugulose, umbilicate" 14. auripilis 



Punctures of head fine and dense, not umbilicate, or with dense fine ground 



sculpture only 5 



5. Disk of pronotum with distinct individual round tuberculi 6 



Disk of pronotum with normal fine punctures 7 



f). Apical margin of elytra paler 12. arena 



Elytra unicolorous 13. darlingtoni 



7. Pronotum usually parallel, front angles broadly rounded, sides in front not 



distinctly emarginate 8 



Pronotum more or less narrowed behind, front angles distinct, sides in front 

 distinctly emarginate 15 



8. Pronotum very much depressed; color entirely testaceocastaneons or 



rufotestaceous 11. angusticollis 



Pronotum not very much depressed ; color piceocastaneous to testaceous 9 



9. Fourth (and fifth) sternites of male with a transverse fold 10 



Fourth and fifth sternites without fold 13 



10. Eyes at about twice their length from base 11 



Eyes at about three times their length from base 5. rulomus 



11. Fold of fourth sternite complete across disk VI 



Fold of fourth sternite divided at middle 4. fasciatellus 



12. Seventh sternite of male broadly and feebly emarginate, eighth deeply 



emarginate 3. potamus 



Seventh sternite of male not at all emarginate, eighth feebly emarginate. 



2. rivularis 



