H. F. WICKHAM 263 



segment subcqual, sutures regularly curved. Legs atout, too poorly pre- 

 served for description. Length, 11 mm.; of elytron, about 7 mm. 



Described from one specimen, with counterpart, found by myself 

 on the Wilson Ranch, near Florissant, Colorado. The type is in 

 my collection. 



About the size of the recent North American S. vespertiJia, and 

 apparently similarly sculptured on the elytra. It is much larger 

 than *S. aniediluviana, the only fossil species heretofore known 

 from Florissant. 



SCAPTOLENOPSIS gen. nov. 



Head of moderate size, narrower than the prothorax, mandibles 

 stout, curved, projecting, labrum apparently closely connate, the 

 suture entirely obliterated. Antennae 10-jointed, only very 

 slightly serrate, second joint extremely short, third longer than the 

 first. Prothorax margined, but the sides are partly hidden by the 

 antennae so that the armature, if present, is obscured. Elytra 

 obscurely and rather closely striate. 



Type.- — Scaptolenopsis wilmattae sp. nov. 



Scaptolenopsis wilmattae sp. nov. (Plate VIII, fig. 19.) 



Form moderately stout. Head, including the jaws, as long as the pro- 

 thorax, length and width equal, sculpture extremely fine and close with 

 vestiges of a covering of short delicate hairs. Labrum pointed at apex. 

 Mandibles stout, outer edges arcuate, exposed on each side of the labrum 

 and moderately roughly closely punctured in such a way as to give the effect 

 of longitudinal striation. Antennae inserted in front of the main portion 

 of the eyes and slightly between them, rather slender, joints beyond the 

 third not very unequal in length, the entire organ less than one-half the 

 length of the body. Prothorax not showing the lateral outlines at all well. 

 but it is narrowed anteriorly and, near the base, not far from twice as 

 broad as long. The surface is minutely sculptured and finely, rather closely 

 hairy. Scutellum small, triangular. Elytra subparallel at sides, apices 

 broken, surface with a covering of fine, short, rather close hairs, striation 

 neither very well defined nor deep, but rather close. Epipleural margin 

 well shown on one elytron, apparently wide. Legs rather short, not much 

 thickened, tarsi with the proximal three joints strongly pubescent beneath. 

 Length, as preserved, 20 mm. 



One specimen collected at Station 17, Florissant, Colorado, by 

 Mrs. W. P. Cockerell, after whom it is named. The type is in the 

 University of Colorado Museum. 



This is a puzzling insect, having, at first sight, the general ap- 

 pearance of Scaptolenus in the Cebrioninae. Analysis of the 



TRANS. AM. ENT. SOC, XL. 



