AMERICAN COLEOPTERA. 157 



Notes on CICINDEIilDiE of the United States. 



BY JOHN L. LECONTE, M. D. 



OMUS Eseh, 

 O. Hornii. — Robust, dull black, witb a slight silky lustre, head with a few 

 indistinct rugae between the eyes. Prothorax little wider thaa long, subquad- 

 rate, less narrowed behind than in any other species, and less convex; hind 

 angles rounded, disc slightly rugose at base and tip, transverse impressions dis- 

 tinct but not deep, dorsal line fine. Elytra rather broadly ovate, wider than 

 the prothorax, much rounded on the sides, deeply punctured, with a few larger 

 but not conspicuous punctures intermixed. Legs rather slender, about as in 

 O. Audouini. Length 16.5 mm.; .65 inch. 



One lemale collected by Mr. Joseph Willcox at Yosemite in Cali- 

 fornia. A remarkable species, eminently distinct by its broader form, 

 more quadrate prothorax and diflFerent sculpture. 



€ICINDEL,A Linn. 



C. longilabris Sa?/. 



I have mentioned in another place a beautiful green specimen from 

 Newfoundland, 'given me by Mr. Chevrolat; I wish now to call atten- 

 tion to a variety found in Oregon and Utah, which is either bluish 

 green, bronze, or black, but diifers from the ordinary Canadian race 

 of this species by less opaque surface, and more deeply punctured 

 elytra. 



Dr. S. Lewis has given me a specimen from the mountains near 

 Denver, Colorado, of a fine bronze color, but more elongate and more 

 convex in form, in which the white markings are broader and more 

 conspicuous ; the humeral and apical lunules are entire, and the medial 

 band is connected along the margin with the humeral lunule. 



C. montana Lee, Proc. Acad. 1861, 338, is to be suppressed as a 

 species, and must be considered as a race allied to the one above 

 mentioned, with the elytra less elongate and more convex than usual. 

 The labrum of the $ is dark, but I have observed a tendency to the 

 same peculiarity in other instances, and am not disposed to regard it 

 of specific value. 



C. scutellaris Say. 



Specimens occur in Texas of a blue-green color, resembling closely 

 in appearance the race uuicolur which occurs in Georgia and Florida, 

 but having the prothorax finely rugose, as in the typical scutellaris with 

 copper colored elytra. Baron Chaudoir is quite correct in considering 

 rugifrons, Lecontei. unicolor and scutellaris^ as races of one species, 

 differing greatly in color, and to a less extent in form and sculpture, 



