REVISION OF THE BUrRESTIDyE OF TIIE UNITED STATES. 
237 
elytra being coarser than those of the thorax, and by the posterior impression being di¬ 
vided into two fovece. 
B—c. 
10 . C. acuminata, asnea, thoracc anticc latiore, latcribus rectis prope apieem angulatis, punctato, parcius 
in disco, ad latera iuacquali, elytris costis solitis interruptis, plagis elevatis sublaevibus nitidis, altcrisque depressis 
punctatis ornatis, serratis, apice singulatiin acuminatis et spinula brevi armatis; subtus cupreo-mnea, sterno fere 
laevi. Long. -44—-67. 
Mas segmento ventrali ultimo postice late sulcato valdc cmarginato, apice utrinque bidentato, tibiis anticis et 
iutermediis ourvatis, intus serrulatis. 
1 emina segmento ventrali ultimo late truncato, angulis acutis prominulis, medio carina iutegra laevi signato, 
tibiis anterioribus paulo curvatis. 
Tamaulipas, extending to Matarnoras and probably into Texas; Dr. Berlandiere. Quite 
distinct by the above characters from all the other species seen by me. The impressed 
spots are almost as in Chalcophora virginiensis. 
B—d, a. 
20. C. ge m m a ta, depressa, supra laetc purpurea, capitc valdc punctato, viridi-aurco, inmquali, cuprco-maculato, 
thorace tenui canaliculate, versus latera inacquali, viridi-aureo variegate, punctato parcius in disco, elytris sat dense 
aequalitcr punctatis, costis solitis tenuibus interruptis, impressionibus utrinque 4 lacte inauratis, strigaque subhu- 
mcrali ornatis, 2nda et 3ia postice emargiuatis; subtus viridiaenea, purpureo-variegata nitida, prosterno medio parce 
subtiliter punctato. Long. -88. 
Femina segmento ventrali ultimo carina laevigata postice sensim attenuata, apice truncato, tibiis intermediis 
rcctis, anticis paulo curvatis. Mas latet. 
Lee. Proo. Acad. Nat. Sc. Phila. 1858, 67. 
Two specimens collected by Mr. Arthur Schott in Arizona. The antennm are purple, 
the third joint is as long as the three following. The last ventral segment is elongate, ob¬ 
lique, and even a little concave on the sides; the marginal groove is limited by an inter¬ 
nal elevated serrate line; the posterior angles of the other segments are very prominent. 
B-d, /?. 
21 . C. sexsignata, obscura, subaenesceris, rude punctata, tborace brevi, lateribus prmcipue subrectis, trans- 
versirn rugoso, linca dorsali srepissime lrnvi, interdum obsoleta, elytris costis parum distinctis, fovea basali, altera 
ante medium, tertiaque majore pone medium impressis, smpissime cuprascentibus, serratis apice singulatim rotun- 
datis; subtus saepissime purpurea, medio eyanca, (nonnunquam renca, medio viridis,) sterno dense punctato. Long. 
•28—50. 
Mas capite viridi, segmento ventrali ultimo obsolete carinato, apice emargiuato, tibiis anticis et intermediis cur¬ 
vatis, his paulo serrulatis. 
Femina segmento ventrali ultimo carinato, apice minute euiarginato, tibiis anterioribus paulo curvatis. 
Buprestis sexyuttata || Say, Journ. Acad. Nat. Sc. Phila. 3, 161. 
