STAPHYLINID/E. 109 



the latter between the teeth moderately sinuate and armed with four obtuse 

 and slightly swollen, approximate and equidistant teeth. Length 2.1 mm.; 

 width 0.63 mm. Canada (Toronto). 



To be known readily by the rather short, strongly and gradually 

 incrassate antennae, coloration, sinuate elytral apices and by the 

 pronounced male sexual characters. The cephalic carinse are very 

 high and keel-like, much stronger than in any other species that 

 can now be recalled. 



Sableta (Canastota) flaveola Mels.- Somewhat similar but more parallel 

 and more pubescent, the prothorax wider and more transverse, fully as wide 

 as the elytra and with the disk infumate centrally, the elytra larger and 

 almost one-half longer than the prothorax, the long mesosternal process 

 still broader and rounded at tip, the metasternal projection much more 

 broadly rounded and separated from the process by the same extremely 

 short interval, not more than half as long as the subapical width of the meso- 

 sternum. The tubercle of the fifth tergite (cf) is extremely minute and barely 

 visible, and the four teeth of the apical sinus of the sixth, shorter and broadly 

 rounded, with the two median relatively more widely separated, the lateral 

 flat teeth much reduced. Length 1.9 mm.; width 0.62 mm. Pennsylvania 

 (Philadelphia). 



The specimens which I took in the suburbs of Philadelphia, agree 

 in every particular with Melsheimer's description. The elytra are 

 blacker than in canadensis postero-externally and are also blackish 

 along the suture basally. The antennae are rather rapidly and very 

 strongly incrassate and thick distally. 



Sableta (Canastota) beatula n. sp. Moderately stout and convex, rather 

 shining, pale testaceous, the elytra more flavate, scarcely visibly infumate 

 latero-apically, the pronotum feebly infumate apically at the middle; head 

 and a large subapical abdominal cloud piceous-black, the legs pale; punctures 

 fine, rather close, not so asperate as in flaveola; head wider than long, the 

 eyes rather prominent, at about two-thirds their length from the base; an- 

 tennae pale, gradually incrassate and moderately so for the present subgenus, 

 the third joint shorter and more obconic than the second, the fourth trans- 

 verse; prothorax transverse, parallel and only feebly arcuate at the sides, 

 very strongly rounded at base, not quite as wide as the elytral base; elytra 

 large, parallel, only slightly shorter than wide, the suture nearly one-half 

 longer than the prothorax; abdomen but little narrower than the elytra, 

 very feebly tapering, the fifth tergite (c?) with a large flattened median 

 tubercle near the apical margin, the remainder of the surface marked by 

 numerous longitudinal folds or feeble carinse which are nearly as long as 

 the segment, the sixth concealed in the type. Length 1.4 mm.; width 

 0.4 mm. Pennsylvania (Philadelphia). 



Allied to flaveola but diffeiing in its less dilated form, relatively 



