84 Trans. Acad. Sct. of St. Louis. 
slightly longer than wide and with the sides diverging feebly from the 
basal angles throughout; legs stout; integuments Coarsely and sparsely 
punctate anteriorly, the punctures of the elytra smaller, irregularly 
disposed, of the abdomen very fine and moderately close-set; head in 
the male as wide as the base of the elytra but narrower than the apex, 
formed as usual but with the sides more rounded toward base; protho- 
rax subequal in width to the head and base of the elytra, distinctly longer 
than wide, feebly narrowed from apex to base; abdomen as wide as the 
elytra, parallel. Male with the fifth ventral wholly unmodified, the 
sixth narrowly flattened along the median line toward base, the surface 
feebly and narrowly prominent in the middle at apex, the latter rectilin- 
early truncate and unmodified throughout; female with the sixth 
segment feebly lobed at tip. Length 9.8 mm.; width 1.4 mm. TIIli- 
+! NOB Levin e'h obecb devin Cb dees h eee daw aa eahe samen cere ce oy vane ane 
9 — Head large, as wide as the elytra or wider; gular sutures moderately 
separated, straight and parallel; elytra bicolored, red, black toward 
DOSE Vii dil eee ssa hess ids nes sls shy pan ee ees Gabe Nene bo ee Sheba 
Head small, narrower than the elytra, with more broadly rounded basal 
angles; elytra uniform in color throughout and concolorous........ Il 
10— Form rather stout, parallel, normally convex, shining, black, the elytra 
and legs bright rufous, the former black in rather less than basal half 
toward the suture and less toward the sides; antennae obscure rufous; 
head large, slightly wider near the base than at the eyes, the latter 
moderate, the sides nearly straight with the angles moderately rounded; 
punctures coarse, rather close-set toward the sides, almost wanting 
on the vertex; prothorax a fourth longer than wide, much narrower 
than the head, feebly narrowed posteriorly throughout, the sides nearly 
straight, the angles rather well rounded; punctures coarse, moderately 
sparse, confused, the smooth median line not defined by punctured 
series; elytra more depressed, slightly elongate, about as long as the 
prothorax and slightly wider, the sides nearly straight and feebly diverg- 
ing from base to apex, the punctures less coarse than those of the 
prothorax, rather sparse and confused; abdomen parallel, not quite as 
wide as the elytral apex, the punctures minute and close-set. Male 
wanting; female with the apex of the sixth ventral very broadly 
rounded and briefly lobed. Length 7.0 mm.; widthl.l mm. British 
Columbia ......- b ialein:hic bee ip -ahaluibis.e ee ewed sein aie es po bd-e- 06.0 WRREEME LOG. 
Form nearly similar but more slender, the coloration, lustre and sculpture 
similar, except that the punctures throughout are somewhat sparser; 
head not so large, the sides parallel and nearly straight for almost 
twice the length of the eyes behind the latter, the angles right and mod- 
erately rounded as usual; antennae rufous, not as long as the head and 
prothorax, thick, filiform, the median joints very slightly longer than 
wide; prothorax nearly as in divisum but only slightly narrower than 
the head, very feebly narrowed from apex to base; elytra slightly wider 
than the prothorax, equal in length to the Jatter in the female, a very 
little shorter in the male, slightly longer than wide, the sides feebly 
diverging from the base; abdomen as in divisum. Male with the fifth 
and sixth ventrals unimpressed, the latter broadly arcuato-truncate at 
apex, the surface at the apex with two small approximate tufts of short 
