472 Goleopterological Notices^ VII. 



der, with the four basal joints decreasing rapidly in length ; species gen- 

 erally rather large II 



Scutellum very minute ; prothorax narrowed gradually toward base but not 

 constricted, the pronotum with six subbasal fovese ; hind tarsi shorter, 



with the four basal joints subequal ; species minute HI 



Head with a large and deep excavation at the base of the occiput and a large 

 and profoundly excavated pit above and contiguous to each eye ; prothorax 

 feebly narrowed and subsinuate toward base, feebly biimpressed before the 

 scutellum and foveate at the sides ; hind tarsi long and slender, with the 

 joints decreasing in length ; scutellum distinct ; prosternum slightly devel- 

 oped before the coxse IV 



The first two of these subgenera occur on both sides of the 

 continent, but the third appears to be confined to the more north- 

 ern regions of the Atlantic district, and the fourth to the true 

 Pacific coast fauna. The species maj^ be separated as follows : — 



Subgenus I. 



Scydmaenus Latr. 



Species of the Atlantic and Gulf regions. 

 Head smooth, not distinctly punctate in either sex. 



Elytra very coarsely and conspicuously punctured, the pubescence long,, 

 erect or suberect and very distinct. 

 Elytra rather feebly inflated and strongly but gradually narrowed pos- 

 teriorly ; body black or paler ; anterior femora moderately angulate 



above in the male 1 perforatus 



Elytra strongly inflated and less narrowed posteriorly, the humeri more 

 evident ; punctures sparser ; body piceous, the elytra pale ; male with 



the anterior femora very strongly angulate above 2 IbadiuS' 



Elytra less coarsely and sometimes quite finely punctate ; humeri evident. 

 The punctures very sparse ; pubescence long, suberect and bristling. 



3 conjux 

 The punctures close-set ; pubescence shorter, more inclined and re- 

 curved. 

 Body pale rufo-testaceous throughout, the elytral vestiture coarser 



and more falvous 4 crilirarius 



Body piceous-black ; elytral punctures still finer and closer, the vesti- 

 ture finer and cinereous ; posterior trochanters dentate posteriorly 



in the male 5 turliatus- 



Head strongly and closely punctate, at least in the male ; elytral humeri 

 very evident, the vestiture coarse and fulvous. 

 Elytral punctures rather small but distinct, rather close-set, the pubescence 



somewhat short, abundant and recurved 6 puncticeps 



Elytral punctures sparse and finer, much less distinct, the pubescence- 

 longer, sparserand more erect 7 scillpticepS' 



