190 REVISION OF THE BUPRESTIDA CF THE UNITED STATES. 
San Diego. The second was found abundantly by Capt. Pope in exploring the Llano 
Hstacado. 
b. Tarsi postict articulo 1mo sequente parum longiore. 
* Epistoma late emarginatum. 
3. G. caelatus. Chalcophora celata Lec. Proc. Acad., 1858, 67. Ures, Sonora, Dr. Webb. 
* § Epistoma profunde emarginatum. 
4. G sphenicus. Buprestis sphenica Tec. Proc. Acad., 7, 83. Texas, Mr. Schott. 
CHALcopHoRA Sol. (emend. Lac.) 
Our species fall into two groups, according as the. margin of the elytra is entire, or 
strongly serrate: in the first, the antennal pores are not numerous; in the second, they 
occupy the sides of the 5th and following joints below the middle, as in the preceding 
genus. The males have the 5th abdominal segment deeply marginate, with a distinct, 
entire anal segment. 
a. Elytra margine integro vel subtiliter serrato: thorax ineequalis costa dorsali dis- 
tincta. 
* Hlytris plagis dilatatis nitidis, sulco subsuturali interrupto. 
Thorax lateribus antice valde angulatis (eenea) - - - - angulicollis. 
Thorax lateribus subangulatis (nigro-eenea)  - - - - - lacustris. 
Thorax lateribus antice late rotundatis (nigro-eenea)  - - - - virginiensis. 
* * Hiytris plagis minus dilatatis, sulco subsuturali integro. 
Thorax lateribus antice late rotundatis. 
Sulcis mediis parum profundis (aurco senea) 
georgiana. 
Sulcis mediis profundis (cupro-senea) - - - - liberta. 
Thorax lateribus ante medium angulatis (zenea) - - - - fortis. 
1. C. angulicollis. Buprestis angulicollis Lec. Pac. R. R. Report on the 47th Par. Insects, 44. 
Chalcophora Oregonensis Fitch, Trans. N. Y., State Agric. Soc., 1857, 702. 
My specimen was found at Sacramento, by Mr. Wittick; Dr. Fitch’s came from the 
Dalles of Columbia river. My description having been published in June 1857, has pre- 
cedence over Dr. Fitch’s, which dates from the beginning of 1858. 
2. C. lacustris, supra nigro-enea, thorace inzequali, spatiis elevatis nitidis parce, depressis opacis dense 
punctatis, latitudine breviore, lateribus postice parallelis, ante medium subito oblique convergentibus, inde obtuse 
angulatis, linea dorsali angusta, sulcis latis minus profundis, elytris spatiis depressis dense punctatis et rugosis, 
sulco subsuturali antice late interrupta, costa 2nda bis dilatata et subinterrupta, 3ia postice dilatata, 1ma pone 
impressionem posticam transyersim impressa, sutura acuminata; subtus cupreo-enea. Long. ‘90—-10. 
Lake Superior, one pair. This species is alluded to by me in the Pacific R. R. Report, 
above quoted, as a variety of C. virginiensis, but on comparison I find, independ- 
