88 J. L. LECONTE, M. D. 



scarcely half as long as the body, with the joints trianfjular and nnrrow- 

 er at the base, the 1st as long as but stouter than the l:}d. The eyes are 

 much smaller, though nearly smooth; the under surface of the head 

 is quite different; gular sutures distant, curved slightly outwards, 

 gular angles not porrected, but broad and truncate ; mentum more 

 prominent, maxillae more exposed, maxillary palpi longer, last joint 

 elongate, cylindrical, truncate. These differences were jiartly indi- 

 cated by me in the remarks appended to the description of the species. 

 The color is mottled gray ; head with four subacute tubercles, but not 

 lobcd, front concave. Prothorax nearly square, with front angles 

 prominent; elytra more convex, alternate interspaces feebly convex 

 and a little uneven; side margins strongly toothed towards the tip. 



.Ciipos lobiceps. — Bofly elongate, slender, pale gray, slightly mottled 

 witli darker; antennre compressed, serrate for the lower half, two-thirds as 

 long as the body; head deejily channelled and transversely impressed, thus 

 divided into two large posterior tubercles or lobes, and two smaller frontal 

 ones ; there is also a lateral lobe behind the eye, separated by a deep groove, 

 eyes large; prothorax suddenly narrowed in front, with the sides strongly 

 elongated and a large median elevation which has a deep rhomboidal excava- 

 tion ; elytra with rows of moderate sized quadrate punctures, :id interspace 

 more convex, 5th, 6th and 7th forming an obtuse costa, 2d and 4th Hat. Length 

 .45 inch ; 11 mm. 



San Diego, California. A specimen kindly given to me by Mr. 

 TJlke. This species resembles the figure of C. LatreiUe! Solier (La- 

 cordaire, Gen. Col. Atlas, pi. 47, fig. 2) in the form of the antennae. 

 It differs conspicuously from our other species by the large posterior 

 lobes of the head and the different sculpture of the prothorax. The 

 following table will enable them to be easily recognized : — 



A. — AntennjB serrate; gular sutures converging behind; eyes large. Cinere- 

 ous mottled; head with four tubercles on the upper surface and two lateral ; 



prothorax with elevated margins and disc 1. lobieeps. 



B. — Gular sutures parallel. 



a. — Antennse as long as the body, filiform ; eyes large. Cinerous mottled; 

 head with four feebly separated tubercles; prothorax transverse, sides 



not elevated 2. COilCOlor. 



b. — Antennae nearly cylindrical, one-half as long as the body; eyes small. 

 Black ; head with fulvous hair; with two frontal and four occijiital 

 tubercles, the middle ones smaller and less elevated 3. capitata. 



