190 
REVISION OF THE BUl’RESTIDyE (F THE UNITED STATES. 
San Diego. The second was found abundantly by Capt. Pope in exploring the Llano 
Estacado. 
b. Tarsi postki articido 1 mo sequente parum longiore. 
* Epistoma late emarginatum. 
3. G. caclatus. Chalc.ophora cxlata Lee. Proo. Acad., 1858, 07. Ures, Sonora, Dr. Webb. 
* * Epistoma prof unde emarginatum. 
4. G. spbenicus. Buqwestis sphenica Lee. l’roc. Acad., 7, 83. Texas, Mr. Schott. 
Ciialcopiiora 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. EIgtra margine integro vel subliliter serrato: thorax incequalis costa dorsali dis- 
hncta. 
jiyO --1 U . 
* Elytris plants dilatatis nitidis, sulco subsuturali interrupt 
Thorax lateribus antice valde angulatis (aeoca)C ^ - 
Thorax lateribus subangulatis (nigro-aenea) - 
Thorax lateribus antice late rotundafis (nigro-aenea) - 
* * Elytris plagis ttii'ous dilatatis, sulco subsuturali integro. 
- 
Thorax lateribus antice late rotundatis. 
Sulcis mediis parum profundis GUggp-aenea) - 
Sulcis mediis profundis (cupromnea) - 
Thorax lateribus ante medium angulatis (acnea) - 
angulicollis. 
lacustris. 
virginiensis. 
gcorgiana. 
1 i b e r t a . 
f o r t i s. 
1. C. angulicollis. Bu/prestis angulicollis Leo. Pac. It. It. Report on the 47th Par. Insects, 44. 
Chalcopliora Orrgonensis 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-aenea, thorace inaequali, spatiis elevatis nitidis parce, depressis opacis dense 
punctatis, latitudine breviore, lateribus postiee parallelis, ante medium subito oblique convergentibus, inde obtuse 
angulatis, linca dorsali angusta, sulcis latis minus profundis, elytris spatiis depressis dense punctatis et rugosis, 
sulco subsuturali antice late interrupts, costa 2nda bis dilatata et subinterrupta, 3ia postice dilatata, lma pone 
impressionem posticam transversim impressa, sutura acuminata; subtus cupreo-aenea. 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- 
