NORTH AMERICAN COLEOPTERA. 25 



COSCIIXOPTERA Lac. 



C. dorsalis. — Black, clothed with prostrate white hair, which is shorter and 

 denser on the under surface. Prothorax densely not coarsely punctured, with a 

 broad smooth dorsal stripe. Elytra more strongly punctured than the thorax, and 

 with no trace of strise. Length 5 mm. 



One specimen, Arizona. 



As stout as C. domiiiicaiia, but much more hairy with a very con- 

 spicuous dorsal vitta. 



C bifaria.— More cylindrical, of the same form as C. axillaris densely punc- 

 tured, clothed with {irostrate white hair shorter and denser on the under surface. 

 Prothorax without smooth dorsal line. Elytra with very faint traces of strise here 

 and there among the punctuation : there is a small marginal red spot at the hu- 

 meri. Length 4.5 mm. 



One specimen, x\rizoua. The punctures of the elytra are distinctly of 

 t\vo sizes, the larger ones having a tendency to form rows ; the prothorax 

 is densely but less strongly punctured. 



C canella.— Black, of the same form and sculpture as the preceding but the 

 humeral red spot is larger and quadrate, as in C. axillaris. It is, however, distin- 

 guished by the different punctuation of the elytra, which is not of uniform size. 

 Length 5 mm. 



Southern California ; not rare. 



C. vittigera Lee. A variety having the elytra marked with a large 

 red humeral spot instead of a long sti-ipe. 

 Occurs in Colorado and Arizona. 



EURYSCOPA Lac. 

 Eu. vittata.^— Specimens of this species were collected in Arizona 

 by Mr. 31orrison, in which the red color is not prolonged forming a broad 

 vitta, but cut off about the front third ; the humeral callus is dark. 

 They thus resemble Eu. Lecontii Cr., but the prothorax is much more 

 finely punctured. 



Eu Lecontii Caotch. A small specimen of this species was found 

 in Southern California by Hardy which has only a very small red mar- 

 ginal spot at the humeri. 



SAXINIS Lac. 



S. apicalis.— Blackish blue, with white pubescence beneath. Prothorax 

 convex, finely but deeply punctured, basal lobe broadly feebly produced, margined 

 as usual. Elytra with a humeral red spot and another rounded one near the tip; 

 punctured in rows, iuterstrial spaces sparsely punctulate, epipleural lobe large, 

 obtusely angulated. Length 6 mm. 



Arizona, Mr. Morrison. Cylindrical, like S. omogera, but much 

 larger, and with the epipleural lobe of a dilferent form. 



TRANS. AMER. ENT. SOC. XII. (7) NOVEMBER, 1884. 



