1879. J d^J [Horn. 



beneath coarsely punctured, abdomen less densely. Legs short, decidedly 

 fossorial, femora short and broad, anterior tibiae scarcely narrowed at base, 

 near the apex feebly bidentate, middle and posterior tibia? broad, scarcely 

 narrower at base, compressed, outer margin unispinose near the middle. 

 Tarsi short, compressed, gradually narrowed toward the end and scarcely 

 as long as half the tibiae. Length .60-.64 inch ; 15-16 mm. PI. iv, fig. 5. 



This species is abundantly distinguished from all others 

 in our fauna by the extremely short tarsi. The surface of 

 the hind angles of the thorax is continuous with that of 

 the disc, there being no limiting depression. 



With this species must be united crassipes Westw. I 

 have seen the type and know it to be identical with 

 Schaumii, Prof. Westwood having mistaken the next species 

 for the present. 



Occurs in California, especially in the south, near San 

 Diego. 



C. Westwoodi, n. sp. 



Similar to Schaumii in all its characters, except in the form of the tarsi. 

 These are at least two-thirds the length of the tibiae, compressed, but 

 scarcely broader at base than at tip. The joints are moreover more loosely 

 articulated and do not appear to be retracted the one within the other as 

 in Schaumii. The body beneath and abdomen are more densely punc- 

 tured. Length .60 inch ; 15 mm. 



Occurs in Owen's Valley, California, where it was not 

 rare, being found usually in or near ants' nests. 



C angularis Lee. 



Black, subopaque, very sparsely pubescent above and beneath. Head 

 densely punctured, clypeus arcuate in front, lateral angles broadly arcuate. 

 Mentum moderately concave, the entire margin narrowly reflexed. Thorax 

 broader than long, sides moderately arcuate, anterior angles moderately 

 prominent, excavated and pubescent within, and limited behind by a slight 

 transverse impression, hind angles triangular, continuous with the lateral 

 margin, smooth above, pubescent beneath and separated from the disc by 

 an oblique impression, disc feebly convex, coarsely and deeply punctured, 

 median line vaguely impressed. Elytra flattened on the disc, convex at the 

 sides, surface with oval foveae moderately closely placed. Pygidium coarsely 

 and deeply punctured. Body beneath as in Schaumii. Legs deeidely fos- 

 sorial, the tibiae a little narrowed at base, tarsi about half the length of the 

 tibine, strongly compressed, and gradually narrowed to tip. Length .56 

 inch ; 14 mm. 



This species is closely related to Schaumii, but is always 

 smaller, and more elongate. The impression within the hind 



PKOC. AMER. PHU.OS. SOC. XVIII. 104. 2x. PRINTED DEC. 31, 1879. 



