THE CANADIAN ENTOMOLOGIST. 33 



cc. Abdomen very sparsely punctured, pubescence scarcely visible. 



Thorax smooth, head rough, epipleura black. .20-. 22 



in glabrata, Fabr. 



It is quite likely \}i\'AX. glabrata may have been recorded in error ; the 

 species called j-vittata is the one everywhere identified as a/ternata, and 

 so recorded in the Canadian lists ; while crenicoUis and caroliniana are 

 inserted in the table, with the characters assigned them by Dr. Horn, 

 since it is, to my mind, likely that one of these is the species which was 

 mistaken for glabrata by the Canadian recorder. 



Haltica, GeoftV. 



The species belonging here are of moderate size, none of them with 

 markings of any sort on the upper surface of the body, which is blue, 

 green or bronzed, and usually shining. The thorax is marked near the 

 base with a transverse more or less distinctly impressed line, which has 

 been used as a means of differentiating species. The following table is a 

 tolerably close copy of that of Dr. Horn, and will serve to distinguish the 

 recorded Canadian forms with some degree of accuracy. 



A. Elytra with a prominent lateral plica along the lateral sub- 

 margin, giving the appearance of a double margin. .20-. 24 



in bimargijtata, Say. 



AA. Elytra not plicate. 



Thorax with deep antebasal groove extending completely across. 

 Larger (.16-. 20 in.) usually blue, form robust, thorax distinctly 



wide at base. chalybea, 111. 



Smaller (.12-16 in.) metallic, brassy, blue, green or bronze. 

 Elytra distinctly sparsely punctate at base, more faintly 



toward apex igniia, 111. 



Thorax with transverse antebasal groove, which is not entire. 

 Transverse impression, ending in a fovea on each side. .18 



in evicta, Lee. 



Transverse impression gradually evanescent at either end. 



Impression deep, humeri of elytra well marked, thorax rela- 

 tively coarsely punctate. Elytral punctuation coarser than 

 usual. Colour more or less coppery, sometimes nearly 



blue. .14-18 in carinata, Germ. 



Impression feeble, almost obliterated; humeri rounded, thorax 

 sparsely punctulate, elytra scarcely visibly punctate, colour 

 bright green to dark blue. .14-. 18 in /oliacea, Lee, 



