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5. S. qiiadripunciaiu.% Black, punctured ; thorax 
hexagonal, inequal. 
Inhah. Missouri. 
Body deep black, immaculate, profoundly and densely 
punctured ; mouth testaceous ; palpi black ; thorax hex- 
agonal, the lateral edge projecting into an angle in the 
middle, disk with four dilated, indented spots, placed in 
quincunx, with a slightly elevated line between them, 
one or two obsolete, indented spots near the lateral angle ; 
abdomen^ pectus and posipectus impunctured, the former 
with short hairs ; feet piceous. 
Length more than one-tenth of an inch. 
Found at Engineer Cantonment. It has a somevrliat 
different aspect from the preceding species. The eyes 
are not quite so large, and the three last Joints of the an- 
tennae are not so remarkably larger than the others. 
OXYPOSUS, Fabr. 
0. stygicus^ Black : tarsi rufous. 
Inhab. Indiana. 
Body black, polished: aniennx 2-5 joints rufous : la- 
brum rufous : palpi honey-yellow : thorax with the late- 
ral deflected margin indented : elytra entirely black ; a 
subsutural stria, and an abbreviated one on the middle, 
near which is another obsolete one, and many rather large 
distant punctures; exterior margin impunctured: fed 
blackish piceous : tard pale rufous. 
Length three-tenths of an inch. 
The thorax is somewhat longer than that of cinctus^ 
Gray, and the punctures of the elytra are more numer- 
ous. 
OXYTELUS, Grav. 
1 . O. sculptus^ Blackish ; five lined ; elytra rufous ; 
feet pale. 
Inhab. Pennsylvania. 
Body piceous-black, punctured : head indented, with 
numerous, small punctures above ; mouth piceous : an- 
fuscous, piceous at base : thorax wdth five grooves, 
of which the exterior ones are dilated and not deeply 
impressed ; densely punctured ; anterior angles not acute : 
elytra dull rufous, with small hairy punctures : a subsutu- 
