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REVISION OF THE BUPRESTID@ OF TITE UNITED STATES. 
B. Abdomen segmento ventrali ultimo margine haud serrulato. 
ce. Elytra costata, impressa, apice acuminata - - - - - - Sp. 19. 
d. Elytra subcostata, plus minus foveata, apice rotundata; thorax inaequalis. 
a. Hlytra foveis discoidalibus utrinque tribus inauratis  - - - - Sp. 20. 
Z. Hlytra foveis discoidalibus utrinque duabus_ - : = - - - Sp. 21. 
e. Elytra plus minus foveata, apice rotundata; thorax lateribus haud ingequalis. 
e. Abdomen segmento ventrali ultimo linea submarginali fortiter serrata - - Sp. 22. 
B. Abdomen seemento ventrali ultimo linea nulla elevata - - - Sp. 23—27. 
f. Elytra basi sola foveata, fasciis atris ornata; thorax antrorsum angustatus, lateribus convexis Sp. 2829. 
A—a. 
1. C. octocola, elongata, depressa, supra obscura, eeneo-micans, punctata, thorace lateribus late rotundatis, 
antice sublatiore, elytris costis solitis tenuibus, fovea basali impressionibusque utrinque tribus inauratis, 2nda pos- 
tice emarginata, postice serratis, apice singulatim rotundatis; subtus cupreo-szenea punctata, prosterno medio levi. 
Long. -44—-67. 
Mas capite viridizeneo, pygidio haud carinato, segmento ventrali ultimo valde emarginato, tibiis anticis et inter- 
mediis curvatis, denticulis paucis internis armatis. 
Femina capite eneo, pygidio carinato, segmento ventrali ultimo sinuatim truncato, dentibus externis acutis, me- 
dio parum prominulo, disco carinato: tibiis auticis paulo curvatis, intermediis fere rectis. 
Lec. Proc. Acad. Nat. Sc. Phila. 1858, 67. 
Texas, Arizona, and Colorado river of California: lives in species of Prosopis. ‘The last 
ventral segment is provided with a submarginal elevated serrate line, and a smooth an- 
terior triangular spot each side, which projects into an acute tooth: the segments of the 
abdomen are each furnished with a smooth lateral spot, and their posterior angles project 
strongly. The tooth of the anterior femora is serrate externally, but scarcely so inter- 
nally: the third joint of the antenne is more than twice as long as its width. 
2. C. basalis, magis clongata, depressa, supra obscura, eneo-micans, punctata, thorace lateribus rectis, antice 
angulatis et obliquis, linea tenui dorsali, alteraque utrinque brevi basali leevibus, elytris costis solitis tenuibus, 
fovea basali, alterisque utrinque tribus subauratis, postice serratis, apice singulatim rotundatis; subtus cupreo-eenea, 
punctata, prosterno medio levi. Long. -7. aa 
Mas capite viridi, pygidio haud carinato, segmento ventrali ultimo valde emarginato, tibiis anticis ultra medium, 
intermediis ad medium intus denticylatus, valde curvatis, antennarum articulis 83—7 dilatatis. 
Femina capite eeneo, vix virescente, pygidio carinato, segmento ventrali ultimo sinuatim truncato medio cari- 
nato, tibiis anticis valde curvatis, intermediis fere rectis. 
Lec. Proce. Acad. Nat. Sc. Philad. 1858, 68. 
2Chrysobothris Atabalipa Laporte & Gory, 2, 43, tab. 8, fig. 60. 
Two specimens from Texas, collected by Mr. Schott. Resembles in appearance the 
preceding, but is more elongate, with smaller and less brilliant elytral impressions. Be- 
sides the characters mentioned above the femoral tooth is strongly serrate on its whole 
