NORTH AMERICAN COLEOPTERA. 127 



angles with a deep iocision forming in front an aiiriculate lobe, disc trilobed, the 

 median portion being somewhat depressed, surface very coarsely but sparsely 

 punctured. Elytra with disc flat, sides nearly vertical, discal region with shallow, 

 elongate fovese, the sides with coarse punctures. Pygidium coarsely sparsely 

 punctate. Body beneath shining, with very coarse but sparse punctures. Legs 

 brownish, anterior tibife obtusely bidentate near the apex, middle and posterior 

 tibise acutely dentate near the middle. Tarsi ambulatorial, cylindrical, slightly 

 compressed; and but little shorter than the tibije. Length ..30 inch; 7.5 mm. 

 (PI. 4, fig. 1.) 



In the phite is an outline sketch of this species which will serve better 

 than a description to give an idea of its curious form. The men turn is 

 rather deeply cupuliform, smooth, the hind angles entire. 



One specimen, Texas. 



C plaiii]>es n. sp. — Robust, piceous, feebly shining, legs reddish brown. 

 Head coarsely, not densely punctate, occipital region transversely depressed, ely- 

 peus semi-circular, margin widely reflexed and fimbriate with short hairs, at mid- 

 dle strongly carinate, surface smooth. Thorax transverse, narrower behind, sides 

 slightly arcuate in front, oblique behind, hind angles acute, smooth and shining, 

 anterior angles deeply incised forming an auriculate lobe, disc trilobed, the me- 

 dian portion much wider and depressed, surface with rather closely placed vario- 

 late fovese, densely placed near the side margin. Disc of elytra flat, with very 

 elongate foveas, sides nearly vertical with coarse variolate punctures. Pygidium 

 with coarse variolate punctures. Body beneath coarsely sparsely punctured. 

 Legs broad and flat, sparsely punctured on the under side, smooth above. Ante- 

 rior tibise bidentate at apex, middle and posterior tibise with the outer edge acutely 

 bidentate near the tip. Tarsi cylindrical, slightly compressed, shorter than the 

 tibise. Length .52 inch ; l.S mm. (PI. 4, fig. 2.) 



The punctures of the entire surface bear short erect black hairs. 



In the accompanying plate are figures in outline of the three species 

 which I have associated in one group. Their diflFerences may be seen at 

 a glance. The mentum is rather flat at bottom, the sides reflexed, the 

 posterior angle entire. 



One specimen, Arizona. 



C iiieptlis n. sp. — Black, feebly shining, form relatively elongate. Head 

 coarsely and closely variolate punctate, occiput not transversely compressed, front 

 flat, clypeus narrowly reflexed. Thorax broader than long, general form hexag- 

 onal, anterior angles slightly acute, posterior angles obtuse, disc feebly convex, 

 with very coarse, moderately deep and rather closely placed punctures. Elytra 

 with flat disc which has very elongate variolate fovese, the sides very coarsely 

 punctured. Pygidium with coarse variolate punctures. Legs ambulatorial, rela- 

 tively slender, anterior tibise bidentate near the tip, the middle and posterior 

 toothed at middle and with coarse teeth around the apex. Tarsi nearly as long as 

 the tibise, cylindrical. Body beneath very coarsely but sparsely punctate. Length 

 .50 inch; 12.5 mm. (PI. 4, fig. 4.) 



In this species the mentum plate is of pentagonal form, acute poste- 

 riorly and entire, rounded in front, surface slightly concave, sparsely 



