364 Annals Entomological Society of America [Vol. VI, 



C. grandiceps n. sp. (Plate III). Form rather short and stout, 

 outline, as preserved, not unlike some species of Patrobus in the Car- 

 abidae. Head large, nearly as long as broad and decidedly longer than 

 the prothorax. Eyes not definable. Antennae extending a little 

 beyond elytral two-thirds, moderately stout, the first joint large and 

 thick, third not greatly elongate, tenth and eleventh distinctly shorter 

 than the two preceding. The joints are apparently carinate along 

 their faces. Prothorax very short, a little wider than the head. Elytra 

 (likely enough from abdominal distention due to maceration) not 

 completely covering the dorsal segments, their apices separately rounded, 

 surface coarsely closely punctured mth some indication of striae at 

 the outer margins. Thighs heavy, somewhat cla\ate, especiall}^ the 

 middle and hind pairs. Apex of abdomen extruded, displaying a 

 simple, straight sex organ. Length, to extended tip of abdomen, 

 15.25 mm.; of elytra, 8.25 mm. 



Station number 13B. One specimen, collector not speci- 

 fied, was received from Professor Cockerell. The type is 

 in the Museum of the University of Colorado. Another is 

 contained in the Princeton collection, with the number 6543, 



This looks like a Carabid, but what can be seen of the struct- 

 ure of the underside together with the large antennas incline 

 to the assignment given above. The antenna figured is a 

 trifle too slender, since it is a camera lucida drawing and the 

 edges of the organ were- not entirely freed from the matrix. 



Leptura Serv. 

 L. leidyi n. sp. (Plate I, Fig. 6). Fonn, judging from the remains, 

 subparallel, as in the recent L. sphaericollis. Head apparently in- 

 complete in front of the eye, which is reniform, distinctly emarginate 

 and of rather small size. Antennae not preserved, except a few of the 

 basal joints which are relatively shorter than usual in the living forms. 

 Prothorax a little damaged, but apparently not strongly campanulate. 

 Elytra subparallel to apices which are separately rounded and not 

 much narrowed, f^urface sculpture everywhere very fine, the elytra 

 seemingly with a delicate pubescence. Legs moderately long. Length, 

 from front of head to abdominal apex, 7.50 mm. 



Type in the Museum of Princeton University, number 

 6512. 



The small size will at once separate this from any of the 

 other described species of Florissant Lepturas, and the fine 

 sculpture serves to differentiate it from L. antecurrens which 

 comes nearest in length. Like the other fossils from Florissant 

 ascribed to this genus, it must be considered a Leptura in the 

 wide sense only. It is named after Joseph Leidy, zoologist 

 and palaeontologist. 



