48 TERTIARY C'OLEOPTERA OF NORTH AMERICA. 



pointed tip of the abdomen. The abdomen is black with long black hairs, 

 sparsely scattered, and most conspicuous as edging the hind borders of the 



* segments. Terminal appendages rather short, blunt, and verv hairy. 



. * 



Length nt body, ">.;"> nun.: width ot same, 1.2 mm.: length of pro- 

 thorax, o.lio mm.; breadth of same, 0.85 mm.; length of middle tibia, o.f> mm. 

 Florissant, Colorado; one specimen, No. 3291. 



HETEROTHOPS Stephens. 



A small genus, most, of whose species are found in the north temperate 

 regions of the Old World, but four or five in North America. A single 

 species has been found fossil in Colorado. 



HETEROTHOPS CONTICENS sp. nov. 

 PI. V. tiu-s. .s, !. 



A single specimen is referred here with some doubt, as it is not very 

 well preserved, but it seems to bear a closer resemblance to the species of 

 this genus than to any other. It is the smallest of the Florissant Staphy- 

 linida- unless the shorter but stouter Platystethus arclietypus be looked upon 

 as smaller. It is very compact, is broadest at the elytra, narrows rapidly in 

 front and less rapidly behind, so as to lie somewhat fusiform, the extremity 

 of the abdomen bluntly rounded. The head is short, subtriangular, and 

 rounded, the antenna' (fig. 9) closely resemble those of //. )>/ixi<> Le< '.. 

 excepting that the last joint is only a little longer and considerably larger 

 than the penultimate, instead of being twice as long and scarcely anv 

 broader: they scarce] v reach the posterior border of the pronotum. The 

 latter is smooth, considerably broader than long, tapers anteriorly a good 

 deal, but its surface is too broken to show what punctures are present. 

 The elvtra are hairv, as are the sides of the abdomen, and the whole bodv 



> . t.' 



is of a nearly uniform very dark castaueoiis. 



Length ot bodv, 3.45 mm.: breadth, 1 mm. 



, 7 



Florissant, Colorado; one specimen, No. 1-0. 



Vl'KDITS Stephens. 



A genus with numerous species, widespread in both worlds. Tho 

 older Tertiaries possess live species, two each at Aix and Florissant, and 

 one in amber. 



