248 REVISION OF THE BUPRESTIDA OF THE UNITED STATES. 
23. A. muticus, cyaneo-plumbeus, obscurus, capite canaliculato, vix pubescente, confertim punctato, thorace 
rugose punctato, dorso pone medium suleato, lateribus subrectis postice subsinuatis anguste impressis, angulis pos- 
ticis haud alte carinatis, elytris dense subtilius granulatis, apice haud serratis, rotundatis, sutura paulo prolongata 
obtusa, scutello plano. Long. -33. 
Lec. Proc. Acad. Nat. Se. Philad. 1858, 70. 
One specimen collected in Texas by H. Haldeman, Esq. Differs from all the allied 
species, not only by the elytra being not serrate, but by the tips being rounded only 
from the outside, so as to leave the suture prominent, though obtuse. 
24. A. macer, valde elongatus, cupreo-zeneus, capite dense punctato, vix pubescente late canaliculato, thorace 
rugoso quadrato, lateribus rectis profunde impressis, angulis posticis carinatis, elytris costa discoidali granulatis, 
apice fortius serratis, anguste rotundatis et acuminatis, scutello impresso haud carinato. Long. -35. 
Lec. Proce. Acad. Nat. Sc. Philad. 1858, 70. 
Eagle Pass, Texas, Mr. Schott, one specimen. The elytral costa is distinct and extends 
to the tip. 
25. A. cupreolus, elongatus, sneo-cupreus, capite dense punctato, postice breviter canaliculato, thorace 
latitudine breviore, lateribus late rotundatis, vage canaliculato, oblique transversim impresso, angulis posticis cari- 
natis, elytris juxta suturam late sulcatis, antice sat fortiter postice subtiliter granulatis, apice serratis anguste ro- 
tundatis. Long. :37. 
One specimen, probably from Kansas. The discoidal costa is very obtuse, and is rather 
produced by a shallow broad subsutural furrow than by a distinct elevation; the under 
surface is more pruinose than usual with short white pubescence. 
26. A. obolinus, minus elongatus, eeneo-cupreus, capite fortiter punctato, profunde sulcato, thorace latitu- 
dine breviore, antice magis convexo, late canaliculato, lateribus subrotundatis profunde impressis, angulis posticis 
carinatis, elytris costa dorsali obsoleta, antice fortius postice subtilius granulatis, apice serratis obtuse rotundatis, 
scutello plano. Long. -34. 
One specimen from Kansas. Differs from all the other species known to me except A. 
macer and muticus, by the scutel being destitute of a transverse carina. The tho- 
rax 1s not wider before the base, and is only slightly rounded on the sides. 
27. A. politus, purpureus, cupreus, aureo-cupreus vel obscure seneus subnitidus, capite dense punctato, 
vage bifoveato, postice subcanaliculato, thorace latitudine breviore, ante basin latiore, lateribus rotundatis anguste 
impressis postice subsinuatis, vage.canaliculato et impresso, angulis posticis carinatis, elytris sat fortiter granulatis, 
apice serratis rotundatis. Long. :25—:33. 
Say, Trans. Am. Phil. Soc. 6, 162. 
Buprestis polita Say, Aun. Lyc. Nat. His. New York, 1, 249. 
From Maine to Kansas; not rare. The elytra are gradually obliquely narrowed be- 
hind, so as to appear slightly prolonged, and are well rounded at the tip; the front is fre- 
quently varied with green; between the eyes are two shallow round impressions. I have 
one specimen in which the head and thorax are dark brassy and the elytra blackish green. 
