38 G. H. HORN, M. D. 



E. Alphonsii, n. sp. — Black, moderately shining. Head shining, sparsely 

 ptinctureii, posteriorly sparsely cinereo-pubescent. Thorax slightly longer 

 than wide, sides in front slightly arcuate, posteriorly parallel, surface shining, 

 sparsely punctured. Elytra black, scabrous, very sparsely clothed with short 

 black hairs, suture and sides narrowly margined with long whitish hairs. 

 Body beneath and legs black, shining, legs sparsely cinoro-pubescent. Length 

 .36 inch ; 9 mm. 



One specimen in the cabinet of Dr. Leconte, collected in Mariposa 

 County, California, by M. Alphonse Thevenet, to whom it is with 

 great pleasure dedicated. 



The antennae of this species being filiform and the joints closely 

 placed, and the eyes moderately broad, coarsely granulated and 

 moderately convex, show the position of this species to be in the 

 same group with puncticnUh and ohlita. The narrow sutural and 

 marginal cinereous lines are found also in the group in sanyuiiiicollis. 



CAXTIIARIS, Linn. 



C tenebrosa, Lee. 



A male of this species is in the collection of Mr. G. K. Crotch, 

 having the antennae very slightly thickened at middle, barely enough 

 to indicate its position in the group in which it was placed. The an- 

 tennae are, however, very short as in many of the species of group I. 

 being barely the length of the head and thorax. The outer spur of 

 the hind tibiae is stouter than the inner, very obliquely truncate and 

 slightly broader at tip. The following are the abdominal characters : 



Mafe. — Fifth ventral segment broadly rounded, sixth subtruncate 

 and slightly emarginate at middle. 



Female. — Fifth ventral broadly rounded, sixth oval and very feebly 

 emarginate at tip. 



C C'rotcllii, n. sp. — Head entirely black with aeneous surface, coarsely, 

 deeply and moderately densely punctured, especially at the sides, sparsely 

 clothed with erect black hairs. Thorax broader than long, sides regularly 

 arcuate, basal margin slightly reflexed and feebly emarginate at middle, color 

 reddish-yellow, surface moderately convex and shining, very sparsely and 

 unevenly punctured. Elytra one-third broader than the thorax, coarsely 

 scabrous, black with bronzed surface, sparsely clothed with short, black, erect 

 hairs. Body beneath and legs black and slightly bronzed. Outer spur of hind 

 tibife slender, very obliquely truncate at tip. Length .30 — .40 inch; 8 — 10 ram. 



Male. — Fifth ventral segment very broadly emarginate, sixth moderately 

 emarginate. 



Female. — Fifth ventral broadly emarginate, sixth with scarcely evident 

 emargination. 



This species is closely allied to aeneipennh, next to which it should 

 be placed in the table (Proc. Am. Phil. Soc. 1873, p. 110), and from 



