CHARLES W. LENG. 
1()8 
Var. ina$;iiifica Lee. — "Elytra depressed, triansrnlar, truncate: orbits of 
the eyes in-oniinent ; form broad, depressed ; second and third joints of antemiffi 
subequal; elytra deeply striate; tooth of the posterior femora emargiuate or 
creuate; splendid violaceous, margined with gold; thorax quadrate, channeled, 
punctate; posterior legs large, tibise incurved. Length .34 inch. Lake Superior. 
Male, posterior femora bidentate, tibim serrate beneath. Female, posterior 
femora nnidentate, tibife not serrate.” 
Length 8 — 9 mm.; .32 — .36 inch. Habitat. — Hud. Bay, Can., Mich., D. C. ? 
Rare, only seven specimen examined. 
D. liypoleiica Lacordaire. Original description traiislated. 
“ Elongate, rufescent-metallic, the surface shining and golden near the mar- 
gins; beneath silvery sericeous; antennse and legs concolorous, the posterior 
femora infnscate above: prothorax subquadrate, base sinuate, slightly constricted 
at middle, scarcely tuberculate on the sides in front, a narrow dorsal channel 
lerminating in a transverse basal sulcus; elytra moderately attenuate at apex, 
which is squarely truncate, surface flat, feebly puuctato-striate, the three ex- 
ternal interstices very slightly transversely rugose, the others almo.st smooth. 
Length 4-i lines; width lij lines.” 
Mesosternum as broad as the coxa; first ventral segment nhont as long as the 
metasternum ; third joint of antennm twice as long as the second ; form broad 
and flattened ; thora.v not evidently punctate. 
Male, pygidium truncate: female, moderately elongate, rounded at apex. Both 
sexes have the posterior femora nnidentate, the female more feebly. 
Length 10 mm.; .40 inch. Habitat. — Tex., La., Fla. 
Eight s|)ecimens are before me, of which two are greenish black 
above ; texana Crotch is the female. 
Var. rufescens Lacordaire, is smaller, and has the antennal joints 
very moderately thickened externally. It occurs near Lowell, 
Mass., on the lily “pads,” and I am indebted to Mr. Blanchard for 
my specimens as well as for pointing out its differentiation. It is 
also found in New York by Mr. Sherman, and in New Jersey by 
Mr. Liebeck, and is possibly mixed in collections with cincticornis, 
from which it may be separated by the length of the third antennal 
joint. 
Length! -8 mm.; ..32 inch. Habitat. — Mass., N. Y., N. J. 
I>. paliiistta Olivier. Original description translated. 
Green metallic above, cinereous beneath ; anterior tarsi dilated ; of the same 
size as D. simplex; antennae almost as long as the body, basal joints rufous, 
aiucal black; elytra punctato-striate ; legs red, posterior femora metallic above, 
dentate beneath; anterior tarsi dilated, the first joint large, cordiform.” [The 
dilated tarsi are i)resent in the male only.] 
Mesosternum as broad as the coxa; first ventral as long as the metasternum; 
elytra truncate at tip; form flattened, more slender than the precediim species; 
third joint of antennx more than twice as long as second ; thorax scarcely punc- 
tulate. 
