THE CANADIAN ENTOMOLOGIST. Tey 
of a golden lustre, the rest are silvery. Nose more grossly punctured 
than the rest of the head; vertex convex; eyes subovate, pale with a 
slight golden lustre; antennae filiform, longer than the prothorax, 
obscurely rufous, sin the four first joints black, fifth joint longer than 
the fourth : prothorax campanulate, anteriorly constricted, posterior angles 
a little diverging, thinly punctured; channelled, the channel running 
between two dorsal gibbosities: scutellum triangular: elytra rather widest 
at the base, and punctured there more grossly next the suture; diverging 
and truncated at the apex: tibiae piceous or rufo-piceous ; four posterior 
thighs rufous at the base. 
VARIETY B. In this variety only the base of the six last joints of the 
antennae is rufous, all the thighs are rufous at the 
base, and the tibiae of a clearer red, but they are 
dusky at the apex; tarsi rufous at the base. Length 
of the body 334 lines. 
C. Elytra with a stripe at the base, tips and lateral margin 
rufous: antennae entirely black: legs as in variety B. 
Length of the body 434 lines. 
D. Elytra with a longitudinal rufous stripe dilated at the 
base and apex ; bead of the lateral margin also rufous; 
antennae and legs nearly as in B, but the whole of 
the tarsi is obscurely rufous. Length of the body 
3—4 lines. 
E. Elytra rufous with the suture and a stripe near the 
margin abbreviated at both ends, dusky : antennae as 
in A; legsasin B. Length of the body 4—5 lines. 
F. Elytra rufous, with a dusky suture ; antennae as in À ; 
legs as in D. 
G. Like F, but elytra luteous ; antennae all black. Length 
of the body 4 lines. 
H. Like F and G, but legs and antennae ue Length of 
the body 334 lines. 
ZL. Proteus seems to vary ad infinitum in the colour of the elytra, 
antennae, and legs, but as all the varieties agree in every respect except 
colour and size, and the elytra advance so gradually from pale rufous to 
black, or vice versa, there can be little doubt of the identity of the 
different varieties. [This very variable species is common throughout 
Canada. It belongs to the genus Acmaops Lec. | 
