sept. i8 97 .] Hayward : Coleoptera of N. E. America. 
135 
10 
6. Elytra with the fourth stria sinuate. 
Elytra with the fourth stria straight.... . . * * * 8 
7. Slender, elongate, convex; thorax as long as wide, not wider at'base’ than apex 
hind angles subacute; elytra deeply striate, the stride distinctly punctate • lees 
aeneous, the femora at base and the tibiae more or less testaceous Length 
• 19-22 mch; . . inaequale’ 
Broader, less convex; thorax distinctly wider than long, slightly wider at base 
than apex; hind angles varying from subrectangular to subacute; elytra less 
! eep y strlate > the strPe more finely punctate; legs variable, usually nearly as 
in inczquale. Length, . 19-.26 inch ; 4.75-6.25 mm.Iittorale. 
8 . Broad, slightly depressed; thorax nearly twice as wide as long, not wider at base 
t an apex, sides arcuate in front, deeply sinuate behind, basal fovea: distinctly 
bistriate, hind angles subacute, carinate; elytra finely striate, the stria: finely 
punctate; legs varying from asneo-piceous to ameo-testaceous. Length 22- 28 
inch; 5.5-7 mm. . , 
Robust ; thorax about one-half wider than long, wider at base than apex, sides 
slightly arcuate in front, sinuate behind, basal foveae feebly or obsoletely bi- 
striate, hind angles prominent, acute; elytra deeply striate, the striae deeply 
punctate; legs dark aeneous, the femora at base and the tibiae more or less 
rufous. Length, .22-.30 inch ; 5.5-7.5 mm.punctatostriatum. 
9. thorax wider at base than apex. 
Thorax not wider at base than apex. 
Robust, bronzed, shining; thorax nearly twice as wide as long, sides arcuate in 
front, sinuate behind, hind angles acute, carinate; elytra moderately deeply 
striato-punctate; legs rufo-piceous, slightly aeneous, the femora rufous at base 
Length, .2 3 -.2 5 inch; 5.75-6.25 mm.robusticolle. 
Feebly convex; bronzed, varying to bluish-black, shining; thorax about one-half 
wider than long, sides moderately arcuate in front, sinuate behind; hind 
angles slightly prominent, subacute, very finely or obsoletely carinate • elytra 
deeply striato-punctate; legs ameo-piceous, the femora at base and the tibiae 
rufous. Length, .22-. 2 6 inch; 5 . 5 -6. 5 mm.COxendix. 
More lobust; bronzed, usually coppery, elytra with the discs obscurely testaceous • 
thorax rather less than one-half wider than long, sides arcuate nearly to base," 
feebly sinuate in front of the hind angles, which are subrectangular and feebly 
carinate; elytra moderately deeply striato-punctate, the punctures usually 
greenish; legs testaceous. Length, .18-.27 inch; 4.5-6.75 mm. 
Eighth stria of the elytra moderately near, but distinct from the margin. 13 
Eighth stria of the elytra indistinct from the margin; humeri rounded. 16 
13. Humeri of elytra subangulate, all the striae entire; hind angles of thorax not car¬ 
inate; color more or less bronzed, sometimes greenish or bluish. 14 
Humeri of elytra rounded ; hind angles of thorax carinate. ! c 
14. Elytra with the dorsal punctures large, round, foveiform. 
Thorax narrower at base than apex, sides moderately arcuate in front, slightly 
sinuate behind, hind angles subrectangular; elytra finely striate, very finely 
alutaceous, shining. Length, .20-.24 inch; 5-6 mm.americanum 
Elytra with the dorsal punctures normal. 
11 
12. 
