NORTH AMERICAN COLEOPTERA. 
805 
Hub . — Western Nevada ; Los Angeles, Cal., and Arizona, near 
Ynina. 
.4. pensile n. sp. — Foraiof arcuatiis ; color slightly cupreous, feebly shiiiiug. 
Anteunse rather slenrter, passing the middle of the thorax, slightly greenish, 
serrate from the fourth joint. Head feebly convex, occi{)ut slightly impressed, 
the line extending to the middle of the front, the front coarsely and closely 
puuctate, occiput less closely. Thorax broader than long, not narrower at base, 
sides regularly arcuate, lateral margin sinuate, hind angles with a fine, short 
Carina; disc convex, but irregular, a vague depression in the front and base of 
the median line, sometimes a fovea on each side; lateral oblique impressions 
distinct, but short; surface vaguely transversely sirigose and punctate; elytra 
slightly sinuate behind the humeri, and a little broadened behind the middle 
apices subacute and serrulate, disc slightly flattened, the sutural edge elevated 
from the middle to the apex ; surface imbricate, more closely at a])ical third and 
in the basal foveae, which are modei'ately deep ; body beneath similar in color to 
the upper surface, but more shining; prosternal lobe feebly emarginate at mid- 
dle, the intercoxal process moderately broad, acute behind the coxae, the pro- 
pleurae grauulate-imbricate, sparsely pubescent; metasternum at sides roughly 
imbricate. Abdomen finely punctate, very sparsely at middle, more closely at 
the sides, the first segment finely strigose, the outer surface including the ver- 
tical portion of the segments finely and sparsely pubescent; last ventral segment 
very obtuse or truncate ; pygidium coarsely punctate, with a strong carina, w'hich 
projects at tip ; claws dissimilar. Length .30 — .32 inch.; 7.5 — 8 mm. 
Male . — Front more or less greenish. Prosternuin roughly punc- 
tured, more sparsely in front, not pubescent ; first ventral segment 
flattened at middle, the second with a smooth but not deep gi-oove 
extending two-thirds the length of the segment; anterior tibite feebly 
mucronate, middle and posterior tibiie simple ; claws of front tarsi 
cleft close to apex, almost bifid, middle or hind claws broadly toothed. 
Female . — Front cupreous, and somewhat more convex. Proster- 
num but little smoother than the male. Ventral segments simple; 
tibise not mucronate; claws broadly toothed on all the feet. 
The six specimens before me show no variation. In its general 
appearance the species greatly resembles some of the forms of politus. 
From the species which seem most closely related to this (anxms 
and Blanchardi) the present differs primarily in color, this being 
cupreous, they olivaceous. Color characters are, however, not greatly 
to be regarded, as great variations do occur. On the male sexual 
characters it is better to place more reliance, as these are far more 
constant. 
Hab . — Massachusetts (Blanchard ). 
A. Blaiieliardi n. sp. -Form moderately robust, olivaceous bronze, sub- 
opaque. Antennse scarcely passing the middle of the thorax, serrate from the 
fourth joint, surface bronzed. Head rather flat, occiput highly impressed, the 
TRANS. AM. ENT. SOC. XVIII. 
(39) 
OCTOBER, 1891. 
