60 GEO. H. HORN, M. D. 



One specimen from California, kindly given me by Mr. A. S. 

 Fuller. 



The species of this genus are rather heterogeneous in size and 

 aspect and having become moderately numerous require a table giving 

 in short their characters. 



They group themselves in the following manner : 



Spurs of hind tibise slender and similar 1. 



Spurs dissimilar, the inner slender, the outer cylindrical truncate 2. 



1. — Elytra scabrous. 



Thorax longer than wide, elytra bluish ornate with yellow. 

 Elytra with a broad yellow vitta on each; surface subopaque. 



elegans. 

 Elytra with three broad yellow bands interrupted at suture, surface 



more shining, less coarsely scabrous perpulclira.. 



Thorax wider than long, color black, subopaque Fnlleri. 



Elytra quadricostate, color yellow with a brown post-median band and four 



basal and some apical spots of brown luirabilis. 



2. — Body above entirely black mflesta. 



Body black, thorax red nemognathoides. 



The first two species are very variable in color. 

 C. elegans, Lee. [Epic.) Ann. Lye. v, 161; {Lytta) Proc. Acad. 1853,341; {Calosp.) 

 Class. Col. N. A. p. 273. 

 var. humeralis, Horn, Trans. Am. Ent. Soc. 1870, p. 93. 

 C. perpulchra, Horn, loc. cit. p. 92. 

 C. Fulleri, n. sp. 



C. mirabilis, Horn, loc. cit. p. 93. 

 C. mcesta, n. sp. 

 C. nemognatlioideB, Horn, loc. cit. p. 92. 



