52 TERTIARY COLEOPTERA OF NORTH AMERICA. 



rounded angles, especially posteriorly; the surface appears to lie much as 

 in the head and delicately and briefly villous. 'Phe elvtra are Together 

 rather broader than long and somewhat broader than the proaotum, with 

 which they agree in texture and clothing. The legs are m>t very long- but 

 very slender, the femora delicately incrassate, the tibia- enlarging regularly 

 so as to be half as large again at tip as at base, with recumbent not very 

 heavy spiuous hairs and delicate apical spurs. Abdomen and abdominal 

 appendages much as in ,S. cinnamopterus. 



Length of body, 10 to 12 nun.: of antenna-, 2.5 mm.; breadth of elytra, 

 2.(i mm. 



Florissant, ('olorado; eight specimens, Nos. 8;"T2, x<;;>2 and 9240, 

 116(i2, 12420, 18024, 13G07, 144f>l, and of the Princeton College collection, 

 No. 1.57s. 



Named for the v<-teran Pennsylvania geologist, Peter Lesley. 



STAPHYLINUS VETULUS sp. nov. 

 PI. VI, tigs. 11, 1 



A large and stout species, perhaps as nearly allied to our common N. 

 vulpinus Nordm. as to any of our living forms. The head, however, is more 

 nearly rotund, not truncate posteriorly, and the sides strongly convex; 

 apparently the surface was somewhat similarly punctate' and was covered 

 with a similar pile; the only bristles which can be seen are a pair of slender 

 straight ones, distant from each other, but not so distant as they are from 

 the eyes, between which they are placed; (hey are about as far apart as 

 those on the front margin of <S'. vulpinux, but as far back as those on the 

 inner margin of the eyes; they are also shorter than any of those on the 

 head of S. vulpinus; and besides them an- indistinct sig-ns of some corre- 

 sponding nearly in position to those on the front margin and on the posterior 

 outer angles of S. vulpinus. I have examined nearly all our species of 

 Staphylinus without rinding any trace of bristles in such a position. The 

 antenna- are only partially preserved, the apex of the first joint with the 

 seven succeeding showing upon one side and scarcely differing from their 

 structure in .S'. ni//>h//tx unless the tirst joint, only the tip of which is seen, 

 is, to judge Irom the position of the apex, a little shorter than usual. 



The pronotum has the same surface structure as the head and is of 

 much the same si/,e and shape, being subrotund, no longer than broad, with 



