32 ; THE CANADIAN ENTOMOLOGIST. 
Very like the species just described but much smaller. Body con- 
fluently punctured, upper surface black, with only the elevated parts 
glossy, lower bronzed-copper and glossy. Mouth and antennae bronzed ; 
eyes black ; front sculptured as in S¢. dvaricata : prothorax uneven with 
shallow impressions and a broad dorsal channel ; distinctly bisinuate at 
the base; surface with levigated elevations: scutellum very minute, im- 
pressed : elytra divaricated and suddenly attenuated at the apex, which is 
rounded and has a single ridge ; surface rough with many concatenated 
and levigated irregular elevations, side of the tip bronzed : breast channel- 
led underneath, but the first segment of the abdomen less conspicuously, 
prosternum nearly an isosceles triangle: hypopygium with three short 
teeth. [Taken in Canada, but not very common ; ‘‘ abundant at Lake 
Superior” (Le Conte). Belongs to Dicerca. | 
209. |156.] Buprestrs (STENURIS) TENEBRICA Avrby.—Length of 
body 734—9 lines. Several taken in Lat. 54° and at Cumberland-house. 
This species differs principally from S¢#. #ezebrosa, which in other 
respects it greatly resembles, in having the prothorax without any levigated 
elevations, and with the impressions, except the channel which is better 
defined, more obsolete. The elytra are distinctly furrowed, especially 
next the suture, with punctured furrows, and there is only a series of levi- 
gated elevations near the lateral margin ; the attenuated apex of the elytra 
is longer, rather truncated, and underneath of a dark blue : the prosternum 
is linear, and the base of the abdomen scarcely channelled: the teeth of 
the hypopygium are longer and of a brilliant ruddy-copper. 
VARIETY B. Smaller, upper surface black-bronzed. | Probably synony- 
mous with Dicerca lacustris Lec., a species taken at Point Kewenan, on 
Lake Superior. | 
[157]. 210. Buprestis (ODONTOMUS) TRINERVIA ÆX%rby.—Plate ir, 
fig. 9.—Length of the body 574—53/ lines. Several specimens taken in 
Lat. 54° and 65° and in the Rocky Mountains. 
Body punctured, above black-bronzed, below copper-coloured and 
glossy. Head obscurely copper, confluently punctured and wrinkled, 
with a pair of levigated irregular elevations between the eyes; nose bilobed 
with divaricated lobes forming an obtusangular sinus ; antennae copper 
with a testaceous pedicel: prothorax transverse, confluently punctured 
with several levigated spaces ; lightly and widely impressed, impressions 
faintly gilded ; disk channelled ; sides very slightly emarginate ; base with ~ 
a double sinus, scutellum triangular, acuminated : elytra with the de- 
