AMERICAN COLEOPTERA. 323 



and diflFers from all our species by its longer and more densely punc- 

 tured thorax and more distinctly carinate hind angles. The elytra 

 are similar in color to mecJiauus, Germ., and have a darker oblique 

 spot at the basal fourth, extending from striae 2 — 8, emarginate in 

 front and convex behind ; at the middle is another transverse band 

 liaving the form on both elytra together of a brace , — ^— s gradually 

 lading behind into the color of the surface. 



C. diver^color, Esch. Tlion. Archiv. 11, 1, p. 34.=rotundicollis, Say. 



By a specimen kindly loaned me by Mr. H. Dike, I am enabled 

 to state definitely what Candeze hinted at, (Monograph Elat. IV, p. 

 180). There is no appreciable difference between our eastern speci- 

 mens and that from California, except that the latter is rather more 

 i^hining. 



C. morulus, Lee. New Species, p. 8.5. 



There is in Mr. Hike's, cabinet a variety of this species in which 

 the sides of the thorax are broadly rufous as in lateralis, Lee, in 

 which however the hind angles are black. I cannot find any specific 

 character warranting its separation from the totally black forms. 

 Morulus resembles tinctus, Lee, and in the well preserved specimens in 

 3Ir. Ulke's cabinet there is a very faint metallic tinge to the elytra 

 and the intervals in all the specimens bsfore me are reticulate but less 

 distinctly than in tinctus. The third joint of the antennae is very 

 slightly shorter than the fourth otherwise the two species might be 

 placed side by side. 



C. carbo, Lee. Trans. Am. Phil. Soc. X, p. 14. = C. lateralis, Lcc. loc. cit. p. 

 15. 



The same variation occurs here as noted in the preceding species. 

 The only points in which the two are said to differ are, that the sides 

 of the thorax are rufous in lateralis, the median impressed line entire 

 and the striae less deeply punctured. These are all evanescent charac- 

 ters in the specimens before me with one from the cabinet of Mr. 

 Ulke, the series is complete. 



C. cruciatus, lj\nn.^=fcHtivij.^, L(ic.^=pulcher, Lee. 



I introduce this species for the purpose of noting one of the most 

 curious varieties that has ever come under my notice in the genus. 

 The elytra of cruciatus, as has been beautifully illustrated by Duval, 

 are of a bright yellow color with a narrow black sutural stripe broadcsr 

 at the scutellum, and two short humeral stripes parallel with the su- 

 tural ; at the beginning of the apical third of the elytra a transverse 



