NORTH AMERICAN COEEOl’TERA. 
297 
the larger females of oUo.'ius, and at present I am unable to give any 
positive means of separating them, except the experience gained in 
handling large numbers of specimens. 
Yar. f if If/ ens Lee. — A little more shining than normal. 
Var. coryli Horn. — Color uniformly bright brassy. 
This form occurs in Massachusetts, Illinois, Missouri, Florida. 
Var. obliquus Lee. — Color uniformly coppery. 
The type of this form, as remarked by Crotch, is founded on a large 
female ; in fact, all the specimens I have seen are of that sex. These 
resemble some of the forms of poliius, but the structure of the claws 
will separate them. 
Habitft. — The only information possessed of the habits of this spe- 
cies concerns the var. coryli, which lives on the Hazel (Corylus) ac- 
cording to Mr. Blanchard (Ent. Am. v, p. 32). 
Hub. — Massachusetts to South Carolina, westward to Kansas and 
Montana. 
A. ciiprieolliN Gory.— Form o? riificollis ; I)lack, siihopaque ; head and tho- 
rax brassy or cupreous, as in ruficoUis. Antenufe black, slightly bronzed, .scarcely 
reaching the middle of the thorax, serrate from the fourth joint, joints 4-10 as 
wide as long ; occiput very deeply impressed, front not impressed, surface coarsely 
punctate, sparsely on the front, more closely on the vertex. Thorax broader 
tban long, not narrowed posteriorly, sides feebly arcuate, the marginal line 
strongly sinuous, liind angles with an obtuse elevation ; disc convex, with a me- 
dian. rather sharp impression posteriorly, broadly transversely impre.ssed in front, 
at sides a deep oblique impression almost reaching the dorsum, surface coarsely 
transversely strigose. without punctures; scutellum transversely carinate ; elytra 
very feebly sinuate behind the humeri and with a feeble posterior broadening, 
the abdomen concealed, apices separately rounded, serrulate, disc slightly flat- 
tened with very feeble trace of costa, the sutin-al edge slightly elevated behind 
the middle, basal depressions not deep; surface closely finely granulate; body 
beneath black, slightly violaceous; prosternal lobe bi'oadly emarginate, intercoxal 
process gradually narrowed, acute at tip; propleurte finely scabrous, ojiaque; 
metasternum at sides roughly scabrous, somewhat strigose. Abdomen tran-s- 
versely strigose with line punctures along the edge of the strigte, smoother along 
the middle and at apex than at the sides; pygidium coarsely punctate, not cari- 
nate; claws similar on all feet. Length .20 inch. ; 5 mm. 
Male. — Prostenmm opaque, sparsely punctate, with short pubes- 
cence, ventral segments not impressed nor flattened. IMetasternum 
longitudinally impresed. Anterior tibite with an extremely feeble 
incurved mucro at tip, middle and hind tibite siinjile. 
Female. — LI n k n o w n . 
So closely does this species resemble raficollis, that at first glance 
it might readily be supposed to belong to that species. They are 
(38) 
TKANS. AM. ENT. SOC. XVIII. 
OCTOBER, 1891. 
