APPENDIX. 313 
Calosoma black, short, broad, thick, dull. Head and 
thorax very finely and thickly punctured. Head in 
front, with an almost smooth disc, and a retuse and 
excavated border on each side. Thorax slightly convex 
and retuse along each side, narrower hindward, with a 
slight impressed middle line. Elytra very convex on 
each side; each with about seventeen lines of minute 
pustules. Length of the body, 8 lines. 
It is somewhat allied to an undescribed Callisthenes 
from California, but is quite distinct. 
Genus Carasus. (Linn.) 
Carabus bicolor. N.S. 
Niger, breviusculus, subtilissime punctatus; thorace 
stria media bene determinata; lateribus subconvexis, 
angulis posticis productis; elytris cupreis lineis sex e 
pustulis elongatis nigris; lateribus subconvexus. 
Black, rather short. Head and thorax very minutely 
punctured, the former with the usual impression on 
each side in front. Thorax with an impressed distinctly 
marked middle line; sides slightly convex; hind angles 
produced, extending over the fore border of the elytra. 
Elytra cupreous; each with three lines of elongated 
black pustules, and with a submarginal line of minute 
impressions ; sides slightly convex. Length of the body, 
8 lines. 
This belongs to the group of C. ligatus and of C. 
Meander, which it resembles in the sculpture of the 
elytra. 
