CETONIIN^ 367 



compressed, filiform and two-thirds as long as the tibiae, the small 

 external tooth at the middle of the latter more developed than usual. 

 Length 9.7-10.5 mm.; width 3.8-4.6 mm. Kansas and Colorado. 

 Five examples. [Crem. saticiiis Lee.] saucia Lee. 



Anterior tibiae moderately slender but not subpedunculate basally, the 

 inner outline continuous and without constriction from apex to 

 base; upper external tooth situated well beyond the middle, the 

 teeth much less widely separated than in saucia 2 



Anterior tibiae, as well as all the femora and tibiae, notably broad and 

 compressed 5 



2 Hind angles of the prothorax rather long, slender and everted. Body 

 very small in size, piceous, slightly shining; head coarsely, not densely 

 punctured, the occipital region transversely depressed; clypeus, 

 viewed from above, nearly semicircular, the margin widely reflexed, 

 at middle very strongly carinate, the surface smooth; prothorax 

 wider than long, narrower behind, the sides arcuate in front, sinuate 

 posteriorly, the hind angles acute and prolonged externally; anterior 

 angles with a deep incisure, forming in front an auriculate lobe, the 

 surface trilobed, very coarsely but sparsely punctate, the median 

 section somewhat depressed; elytra with the disk flat, the sides nearly 

 vertical, the discal region with shallow elongate foveae, the sides with 

 coarse punctures; pygidium coarsely, sparsely punctured; under 

 surface shining, with very coarse but sparse punctures; legs brownish; 

 anterior tibiae obtusely bidentate apically; middle and hind tibiae 

 acutely dentate near the middle; tarsi cylindrical, slightly com- 

 pressed and but little shorter than the tibiae. Length 7.5 mm. 

 Texas. [ Crem. spinifcr Horn] spinifer Horn 



Hind angles of the prothorax acute and projecting posteriorly 3 



3 L'pper surface opaque; elytral punctures scratch-like. Body oblong, 

 black, the dorsum very flat; clypeus strongly carinate at the middle; 

 pronotum sharply divided into three regions; anterior angles auricu- 

 late. the posterior spiniform, the sides arcuate, sinuately narrowing 

 to the hind angles, the base sinuate within the angles; surface coarsely 

 punctured, the cuter sections more coarsely and closely, the central 

 part more sparsely and more opaque; elytra flat, with punctures 

 in the form of elongate scratches on the disk, but decidedly puncti- 

 form at the sides; under surface shining, with coarse sparse punctures; 

 legs slender; mentum entire. Length n mm. Lower California 

 (Pescadero). [Crem. opaculus Horn] opacula Horn 



Upper surface shining and as in saucia, the hind angles of the prothorax 

 also as in that species, acute, projecting posteriorly and bordered 

 externally by a deep emargination, which encloses a dense tuft of 

 fulvous setae 4 



4 Body slender, parallel, feebly convex, shining and clear testaceous 

 in color and with rather long coarse fulvous hairs; head rather finely, 

 closely punctate, the gradually formed anterior declivity beginning 

 midway between base and the strongly reflexed apex, the median 

 carina very strong but not attaining the upturned apex, the clypeus 

 throughout, the basal antennal joint and the unusually prominent 

 ocular canthus, bristling with coarse erect setae; prothorax fully 



