WICKHAM: NEW MIOCENE COLEOPTERA FROM FLORISSANT. 467 



LEPTURA ANTECURRENS Wickham. 



One specimen with counterpart, No. 2,589, 2,590 M. C. Z. (No. 

 13,624 and 13,672 S. H. Scudder Coll.). The condition is inferior to 

 that of the type and no additional characters can be made out except 

 that the present example is a very little larger. 



LEPTURA PETRORUM Wickham. 



Three specimens showing but one side, No. 2,591-2,593 M. C. Z., 

 and another with counterpart, No. 2,594, 2,595 M. C. Z. (No. 8,985, 

 12,434, 14,164, 9,187 and 9,719 S. H. Scudder Coll.). Only the last 

 is in good enough preservation to show the characteristic sharp elytral 

 tip. 



LEPTURA INGENUA, sp. nov. 

 Plate 10, fig. 2. 



Form moderately stout. Head badly crushed but evidently rather 

 large. Eyes not definable. Antennae slender, and, as preserved, 

 reaching well behind the middle of the elytra. Prothorax also badly 

 damaged by crushing, of a lighter color than the head, apparently 

 reddish or yellowish. Elytra hardly at all tapering behind, surface 

 coarsely and deeply, moderately closely punctured at base, the sculp- 

 ture becoming finer posteriorly, fading out near the apices which are 

 separately rounded, each with a longitudinal slightly oblique pale vitta 

 showing on the darker background. Legs wanting. Length, 7.60 mm. 



Described from one specimen. 



Type No. 2,596 M. C. Z. Florissant, Col. (No. 6,382 S. H. 

 Scudder Coll.). 



Judging from the remains, this is a lepturid beetle of rather broad 

 build. The elytral coloration is like that of the recent Leptura vibex 

 of the eastern United States. Probably the antennae were pale or 

 reddish like the prothorax, or perhaps a little darker. 



gen. nov. 



Form approaching that of Ipochus. Head nearly as large as the 

 prothorax. Antennae (with only ten joints preserved) reaching about 



