NO. 1982. FOSSIL COLEOPTERA FROM FLORISSANT— WICKHAM. 295 



One specimen. I feel quite satisj&ed with the generic reference. 

 The fossil is more coarsely sculptured than D. hrevicollis, with which 

 it is comparable in size, resembling some of the Arizona species in its 

 heavy punctuation. Since the specimen is a reverse, the punctures 

 are represented by corresponding elevations. 



Genus LEPTURA Serville. 



LEPTURA ANTECURRENS, new species. 



Plate 25, fig. 3. 



Preserved in profile. A small-headed form, evidently of a type 

 similar to the recent L. sexmaculata. Eye large, extending the fuU 

 width of the head. Antennae of moderate length, the last four joints 

 subequal, the remainder more or less obscured except the second and 

 third, which show the ordinary proportions of the group, the second 

 being short, the third several times as long, all visible joints more or 

 less roughened and pubescent or hairy, the basal three more strongly. 

 Front of head apparently finely and closely punctate and granulate. 

 Prothorax, in side view, strongly tapering from the base, the back 

 scarcely or not at all arched, sculpture weak and indefinable. Elytron 

 narrowed at the tip which is shortly truncate but not spinose nor 

 dentate, the surface rather strongly punctate, punctures crowded at 

 base, becoming less so (separated by about their own diameters) at 

 middle and sparse toward the apex, each puncture carrying a weU- 

 defined hair. Toward the apex, these hairs are approximately five 

 times as long as the diameter of the punctures. Abdomen with no 

 definable sculpture. Only one leg is visible, this incomplete and 

 indicating that these organs were short. Length, 10.25 mm.; of 

 elytron, 6.85 mm.; of antenna, from presumed point of attachment 

 to tip, along chord of arc, 6 mm. 



Type.—Csit. No. 59658, U.S.N.M. 



One specimen. Not very closely allied to any of the North Ameri- 

 can forms with which I am acquainted. The use of the generic term 

 Leptura is to be understood in its broad sense, though I see no char- 

 acters which would invalidate the reference in a more restricted 

 acceptance. The appearance of carination on one of the antennae is 

 due to some adventitious circumstance, since careful examination 

 shows that the carina runs off on to the stone. 



LEPTURA PONDEROSISSIMA, new species. 



Preserved in profile. A specimen in poor condition, but with the 

 anterior portion of the body fairly well preserved and showing one 

 antenna and a front leg is at hand. Form of a heavy Lepturoid type, 

 sculpture of all parts obliterated by the rather coarse grain of the stone 

 on which it is outlined. Leg heavy, femur stout, tibia slightly curved, 



