Horn.] 3ob fDe c. 10, 



C. planatus Lee. 



Elongate, black, sub-opaque. Head densely punctured, clypeussubtrun- 

 cate in front, angles rounded, margin moderately reflexed, a short carina at 

 middle, vertex above the eyes obtusely carinate. 1 lie carina prolonged 

 backward in a pyramidal process, occiput deeply transversely impressed. 

 Mentum plate transversely oval, pointed behind, the sides and posterior 

 margin reflexed, the anterior margin thickened. Thorax broader than 

 long, narrower at base, sides in front arcuate, posteriorly oblique, margin 

 subacute, anterior angles nodiform, excavated in front, the concavity pu- 

 bescent, posterior angles moderately prominent, smooth, limited within by 

 a distinct groove, surface coarsely punctured and with a vague median 

 groove. Elytra flat, the disc limited by an obtuse ridge, vaguely bicos- 

 tate, and moderately closely sculptured with elongate punctures. Pygidi- 

 um obtusely carinate surface with coarse ocellate punctures. Body 

 beneath with very coarse punctures, less dense on the abdomen. Legs 

 slender, moderately long, anterior tibia? bidentate near the tip, the mid- 

 dle and posterior unispinose at middle, tarsi slender, at least as long as 

 the tibiae, the anterior with the last two joints suddenly thickened. 

 Length, .66-. 72 inch ; 17-18 mm. PI. iv., fig. 1. 



This species is one of the most peculiar in the genus from 

 the length of the legs and the structure of the anterior tarsi. 

 The latter character is not sexual, the female possessing it to 

 an extent as great if not greater than in the other sex. 



With this species I have united depressus Horn, founded 

 on a specimen in which the hind augles are wanting by ac- 

 cident or deformity. 



Arizona, Dr. Irwin ; southern coast-range of California, 

 W. M. Gabb. 



C. saucing Lee. 



Castaneous or piceous, shining. Head sparsely punctured, widest at the 

 eyes and rapidly narrowdng behind them, clypeus oval in front, anterior mar- 

 gin broadly reflexed, at middle a strong carina, vertex convex without cari- 

 na?. Mentum flat, sides and posterior margin narrowly reflexed. Thorax 

 broad, as wide as the elytra, surface of three parts, the middle less convex, 

 and the sides more convex, forming a broad thickened border as in Tletm- 

 rius, anterior angle auriculate, separated from the thickened margin by a 

 deep fissure, sides moderately arcuate, near the hind angles suddenly sinu- 

 ate, the angles acute, surface sparsely punctured. Elytra slightly narrowed 

 posteriori}', moderately convex, disc at middle vaguely impressed, surface 

 sculptured with short striga?. Pygidiuin finely punctured. Body beneath 

 very sparsely and rather finely punctured. Legs sub-fossorial, the femora 

 broad and compressed, anterior tibia- with the outer apical angle prolonged, 

 and with a tooth at middle, middle and posterior tibia- compressed, slender 

 at base, gradually broader toward the tip, a spine at middle of outer mar- 



