REVISION OF THE BUPRESTIDA OF THE UNITED STATES. 205 
One specimen, Baltimore, Mr. Wild. I was inclined to believe this a very small speci- 
men of P. thureura, and on comparison I find no satisfactory character except size upon 
which to rest its distinction. Nevertheless the last joint of the abdomen is rounded at the 
tip, which distinguishes it at once from either sex of the preceding. From the absence of 
hair on the prosternum, I suppose that the specimen is a female. 
AncyLocuirA Esch. 
Kiesenwetter, (Ins. Deutsch, 4, 50) states that the first and second ventral segments 
of the abdomen are not connate, but after examining all of our species, I find no grounds 
for this assertion, those segments being united as usual, with the suture, however, less 
obliterated at the middle than is customary. The diagnosis of the genus as given by him 
should also be medified, so as to exclude the sexual character drawn from the anterior tibiee 
of the male, since in a considerable group of the genus (represented in Hurope by A. 
splendida) this distinction between the sexes is not found. 
Our species may be arranged as follows. 
A. Prosternum haud vel vix breviter sulcatum; tibize anticee maris intus emarginatee et unco reflexo apicali ar- 
mate: (Sp. 4 & 5 exceptis.) 
a. Abdomen articulo primo haud sulcato - - - - - Sp. 1—6. 
b. Abdomen articulo primo sulcato - - - - - - Sp. 7—15. 
B. Prosternum late suleatum; tibize anticee sexus utriusque simplices. 
c. Hlytra costis quatuor sutura margineque elevatis  - - : - Sp. 16—20. 
d. Hlytra punctato-striata = - - - - - - - Sp. 21—23. 
A.—a. 
1. A. rufipes De. Cat. 88. Buprestis rufipes Fabr. Ent. Syst. 1, 2, 188: Syst. El. 2,188. Oliv. 32, 16, 
tab. 7, f. 73. Say, Am. Ent. pl. 26. Lap. & Gory, 2, 139, tab. 34, 191. 
New York to Louisiana. In the male the last segment of the abdomen is broadly trun- 
cate and bidentate: in the female it is sinuous, and also bidentate, with a smaller medial 
acute tooth. 
2. A. Gibbsii Lec. Pac. R. R. Reports, 47 Par. Ins. 42, tab. 1, f. 17. 
Steilacoom, W. T., Mr. George Gibbs. The tip of the abdomen of the male is truncate, 
not bidentate. 
3. A. sexplagiata, late viridi-enea, thorace confertim punctato, obsolete canaliculato, antrorsum angus- 
tato, clytris nigris, macula oblonga magna antica, alterisque transversis posticis duabus flavis, margine basali viri- 
dizeneo, profunde striatis apice bidentatis. Long. -43—54. 
Vermont and Northern New York. Head, thorax, body and legs of a uniform bright 
golden green. Antennee obscure bronze. Head and thorax densely punctured, the for- 
