524 TERTIARY INSECTS OF NORTH AMERICA. 



femora are of equal size, the liiiid tibiae considerably longer than the femora, 

 furnished with a superior sharp carination ; they expand slightly at the tip, 

 and are armed with a pair of long, unequal s})urs ; hind tarsi a little longer 

 than the tibioe, the first two joints are subequal, very long, each almost as 

 long as the third to the fifth together; these subequal, the last apically sub- 

 bullate and armed with a pair of rather short claws. Apparently the whole 

 body was uniformly black. 



Length of fragment, 14"""; breadth across middle of thorax, 6.5°""; 

 across closed elytra, 9.2"""; length of hind tibia, 6.4"""; tarsus, 7.1"""; first 

 tarsal joint, 2.75°'°'. 



Named for my excellent friend, the well known American entomologist, 

 Mr. Samuel Henshaw, of Cambridge. 



Florissant. One specimen, No. 8201. 



DIC.ELUS Bonelli. 



DlC^LUS ALUTACEUS. 



PI. 1, Fig.s. 8-10. 



Diccelus alutaceus Horu, Trans. Amer. Ent. Soc, V, 244 (1876). 



" Two elytra much flattened, retaining their proper position in relation 

 to each other, remain, with but little of their actual substance enough how- 

 ever to indicate the surface sculpture. 



"A species is indicated bearing a close relationship to dilatatus, but 

 with the intervals somewhat more convex and the surface more distinctly 

 alutaceous. The humeral carina appears to have been extremely fine and 

 rather less elevated than in dilatatus. 



" Elytra.— Length, .70 inch, 17.5"". Width, .40 inch, lO"". 



"The measurement includes also the portion of the elytra covered by 

 the base of the thorax. With proper allowance being made for flattening a 

 species is indicated of as large size as our largest purpuratus but relatively 

 narrower." Horn, loc. cit. 



The striae are seven in number, besides the humeral stria, and are 0.65"" 

 apart in the middle of the elytra. The length of the largest fragment is 

 17""°; the breadth of one elytron, 4.9°'°'. 



Bone caves of Port Kennedy, Pennsylvania. 



