NORTH AIVIKRICAN COLEOPTPHiA. 
267 
Black, thoracic punctures moderate, round ; elytra! intersj)aces almost 
smooth, shining pallieoriiis. 
Black, elytra and abdomen red Itefiileti. 
Hind femora scarcely thickened. 
Legs rufous riifipes. 
Legs piceous Var. iiiiiiiitiis. 
O. epliippiatiis Say. — Robust, oval, piceous; beak, atitennje and legs ru- 
fous. Prothorax small, rufo-piceous, not densely clothed with whitish pubes- 
cence. Elytra oval, much wider than the prothorax ; anterior two-hfths and a 
transverse post-median fascia rufous, or rufo-piceous and densely clothed with 
white pubescence and connected by a line on the second interspace ; femora, 
especially the posterior, wholly or in part piceous. Long. 2.5 — 3 mm.; .10 — .12 
inch. 
Hab. — Pennsylvania, Iowa, Illinois, California, Wisconsin. 
Allied to 0. rujUarsis Germ, of Europe. 
O. saliciN Linn. — Similar to the preceding, but smaller and less robust 
Black, antennse and tarsi rufous; anterior elytral fascia narrower than in ephip- 
piatus, about one-third from the base, irregular, prolonged along the sutural in- 
terspace to the scutellum in front and extended along the second interspace 
posteriorly, but not connected with the posterior transverse hand which is nar- 
row and angulated. Long. 2.5 mm.; .10 inch. 
Hab. — California, Wisconsin. 
This is 0. subhirtus Horn. Careful comparison of Dr. Horn’s 
types with specimens of the European species in my cabinet leave 
no doubt of their identity. 
O. iiiger Horn. — Rather robust, subovate ; black, anteniife piceous, clothed 
with short pubescence, which is black on the upper and whitish on the under 
surface; scutellum densely white pubescent; an inconspicuous, transverse fascia 
about one-third from the base and consisting of sparse white pubescence. Long. 
2.8 mm. ; .11 inch. 
Hab. — Illinois, Michigan, Pennsylvania. 
The white scutellum is in striking contrast with the rest of the 
su rface. 
O. pai'vic'ollis Lee. — Entirely black, oblong-oval with scarcely any lustre. 
Prothorax coarsely and rather densely punctured ; hind angles subrectangular, 
somewhat rounded. Elytral interspaces very rough. Long. 2.8 — 3 mm. ; .11 — 
12 inch. 
Hub . — California, Nevada, Colorado. 
Distinguished from the three preceding species by the absence of 
elytral markings and from the following by its coarse sculpture, 
rounded posterior angles of thorax and the ninth elytral interspace 
not produced in a sjiine. 
