138 Journal New. York Entomological Societ\. [Voi. v. 
Thorax slightly narrower at base than apex, sides moderately arcuate in front, 
sinuate behind, lnnd angles rectangular; elytra moderately finely stnato-punc- 
tale, intervals nearly flat; form less convex and color more brownish than in 
„slulatum. Length, ,18-26 inch ; 4 5 - 6-5 .lucidum. 
22. Thorax wider than long.*.* ‘ ’'' , 
Thorax as long as wide ; nigro.ameous, elytra often brownish at base with a sub- 
marginal pale spot about one fourth from apex, which is rarely wanting 
moderately finely striato-punctate, the first and second strite entire, the fifth 
represented by a groove at apex; legs rule-testaceous. Length, .16-20 inch ; 
,4-5 mm. 
24. Head as wide as the thorax at apex... '**'**. , 
Head small, narrower than the prothorax at apex; elytra with a su margina 
pale spots near the apex, which is rarely wanting. . 
Elongate, convex; elytra finely striato-punctate, the striae not dilated, in er- 
vals feebly convex; antennas piceous, the first joint rufous ; legs rufous, the 
femora usually darker. Length, .24-.30 inch ; 6-7.5mrn.bimaculatum. 
More convex; thorax more narrowed behind; elytra deeply striato-punctate, 
the striae dilated on the disc, much finer at sides and tip; antennae fus¬ 
cous the basal joints paler; legs pale yellowish tsetaceous. Length, .24- 
.28 inch; 6-7 mm....* postremum. 
25. Elytra with the first and second striae entire, the fifth either entire or lepresente 
by a groove at tip, the others abbreviated behind.. 
Elytra with all the striae entire; dark viridi-aeneous, the elytra without sub- 
^ marginal pale spot, moderately deeply striato-punctate, more finely at sides 
and tip; legs rufous. Length, .22-24 inch; 5.5-6 mm.canadense. 
26. Hind angles of thorax rectangular... • 27 
Hind angles of thorax obtuse, but not rounded;-rather slender, elongate, color 
varying from brownish to black, slightly aeneous; elytra without submarginal 
pale spot, rather deeply striato-punctate; thorax with the sides feebly sinuate 
in front of the hind angles; legs rufous. Length, .23-28 inch; 5 - 75“7 mm ‘ 
texanum. 
27 ' Moderately robust; black, usually slightly aeneous or bluish, the elytra rarely 
"* with a submarginal pale spot, rather deeply striato-punctate; sides of thorax 
distinctly sinuate behind ; legs rufous. Length .20-24 inch; 5-6 mm. 
picipes. 
Elongate, slightly convex; black, slightly aeneous, elytra without submarginal 
pale spot, finely striate, striae distinctly punctate ; legs black or dark piceous. 
Length, .16-18 inch; 4-4.5mm..... 
28 Elytra with two dorsal punctures on the third interval.• * 2 9 
Elytra with rows of sparsely placed, setigerous punctures on all the intervals; all 
the striae abbreviated behind; frontal striae normal. 4 » 
29. Frontal striae normal; elytra distinctly striate, with at least the first and secon^ 
Frontal striae double, oblique, the outer interrupted. 42 
Frontal striae double, nearly parallel, the outer entire. 45 
Frontal striae very oblique, strongly convergent, double, the outer often very 
feeble, abbreviated behind. 4 
i 
