NORTH AMERICAN COLEOPTKRA. 
299 
thirds to base, basal depressions shallow, surface punctate-granulate, rather 
densely between the costie, more sparsely at the sides; body beneath similar in 
color; prosternal lobe broadly emarginate, the interc.oxal process broad with 
parallel sides, very abruptly narrowed at the apex, where it enters the meta- 
sternum; propleurie closely punctate, finely fulvo-pubescent ; metasternum at 
sides very densely punctured and subopaque, finely pubescent. Abdomen 
densely punctured at the sides, especially in front, rather sparsely along the 
median line ; last segment very obtuse, subtruncate, the vertical portion of the 
segments rather densely fulvo-pubescent; pygidium carinate, the carina pro- 
jecting and emarginate at tip ; claws divaricate, broadly toothed at base. Length 
.35 — .58 inch. ; 9 —15 mm. 
Male. — Front slightly concave ; scutelluni scarcely visibly carinate. 
Prosternntn densely punctate and slightly pubescent along the mid- 
dle. Ventral segments simple; anterior tibite feebly mucronate. 
Female. — Front flat, but irregular; scutellum distinctly carinate ; 
prosternum not densely punctate nor hairy ; tibiae simple. 
No variation worthy of note has been observed in this species. 
In the original description the scutellum is said to be not carinate, 
but this proves in this instance to be merely a sexual peculiarity, as 
it is quite certain that Dr. LeConte had a male before him. 
No difficulty need be experienced in recognizing this species, as it 
is one of but few having a well defined elytral costa, and for this 
reason, especially, seems rather out of place among our species. 
Hah. — Texas, at Eagle Pass, and other localities in the southwestern 
jiortion of the State. 
-4. vittatocollis Eand. — Form generally resembling a ]nr^e rujicoHis ; head 
and thorax coppery, subopaque, elytra black, opaque. Anteniipe passing the 
middle of the thorax, serrate from the fourth joint, piceons, faintly bronzed ; 
front slightly concave, the occiput more deeply impressed, the median impressed 
line extending to the base of the clypeus, surface rather closely strigose and 
punctate, clothed with golden-yellow pubescence, except near the upper half of 
the eye. Thorax fully one-third wider than long, sides rather strongly arcuate, 
the margin sinuate, disc convex, with a median shallow imj)ression extending 
from base nearly to apex, lateral depressions vague, hind angles not cai-inate. 
surface closely strigose, the strigte. oblique in front, transverse near the base, a 
median band of golden pubescence extending from the basal to the apical margin, 
a l)roader band of similar pubescence adjacent to the lateral margin, the hind 
angle, however, not pubescent; scutellum transversely carinate; elytra distinctly 
sinuate behind the humeri, broadened behind the middle, nearly concealing the 
abdomen, apices rounded, serrulate ; d i.sc slightly flattened, without trace of costse ; 
the sutural edge slightly elevated at apical third, basal fovete moderate; surface 
densely granulate and opaque; body beneath black, slightly seneous, with very 
sparse, fine golden pubescence ; prosternal lobe obtusely truncate, the intercoxal 
process broad, very little narrowed, except at apex, where the narrowing is ab- 
rupt, at which point the sides are slightly bent downward forming a tooth ; the 
surface, with the propleurte, closely punctate; metasternum at sides densely 
