58 BROOKLYN MUSEUM SCIENCE BULLETIN 3. 3. 
Posterior femora generally extending beyond the elytral 
apices, larger species 7- 
7. Prothorax about twice as wide as long and very much like 
that of palmata; antennal joints largely black, base often 
reddish; legs more or less black or metallic, femora, tibiae 
and tarsi basally more or less reddish; posterior tarsi as usual 
and about half as long as the tibiae; anterior tarsi slender, 
first joint longer than fourth texana Cr. 
Prothorax about as wide as long and generally slightly 
narrower at apex than at base; antennal joints generally 
entirely pale, legs pale, all the femora more or less black 
above; posterior tarsal joints rather long and together 
longer than half of the tibiae; anterior tarsi slightly dilated, 
first joint as long as the fourth joint hypoletica Lac. 
8. Prothorax moderately coarsely punctate, punctures often 
transversely confluent; anterior tooth of posterior femora 
very close to the posterior tooth magnifica Lee. 
Prothorax rather finely punctate, never densely punctate, 
sometimes more or less finely transversely rugose; anterior 
tooth of posterior femora nearlj' as far removed from the 
posterior one as the latter from the apex of femora 9. 
9. Posterior femora extending well beyond the apices of elytra, 
posterior tooth rather long, acute, behind which is a serrate, 
oblique ridge, the latter often reduced to a few denticles in 
small specimens; outer apical angles of elytra distinct, 
though more or less narrowly rounded; anterior transverse 
impression of prothorax generally absent cincticornis Newm. 
Posterior femora shorter, extending to the apices of elytra; 
armature of femora as in cincticornis; outer apical angles of 
elytra obliterated, broadly rounded; anterior transverse 
impression of prothorax generally distinct 10. 
10. Prothorax shining, finely and sparsely punctate proxima Kirby. 
Prothorax alutaceous, dull, finely and sparsely punctate and 
occasionally with a few, fine scratches on the disk caerulea Oliv. 
11. Posterior femora armed with one or more teeth 12. 
Posterior femora without tooth 27. 
12. Two teeth on posterior femora, the inner one occasionally very 
small, tubercle-like I3- 
One tooth on posterior femora 14. 
13. Upper surface entirelj' pubescent; epipleurae not separated 
from the elytra by a distinct ridge piibescens Lee. 
Upper surface not pubescent; epipleurae separated from the 
el ytra by a distinct ridge riifa Say. 
14. Prothorax finely and densely punctate and pubescent; 
elytra without fine, elevated sutural bead hirticoUis Kirby. 
Prothorax not pubescent, punctuation variable; elytra with 
distinct, elevated sutural bead 15. 
15. Prothorax shining, smooth, with very few fine punctures. . . . parvidens Schffr. 
Prothorax distinctly punctate, punctures variable 16. 
