REVISION OF THE BUPRESTID.E 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. 
Ancylochira 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 modified, so as to exclude the sexual character drawn from the anterior tibiae 
of the male, since in a considerable group of the genus (represented in Europe by A. 
s p le n did a) this distinction between the sexes is not found. 
Our species may be arranged as follows. 
A. Prosterauin baud vel vix brcviter sulcatum; tibiae anticac maris intus emarginatx et unco reflexo apicali ar- 
rnatse: (Sp. 4 & 5 exceptis.) 
a. Abdomen articulo primo baud sulcato ..... Sp. 1 —g. 
b. Abdomen articulo primo sulcato ...... Sp. 7 — 15 . 
13. Prosternum late sulcatum; tibiae antic* sexus utriusque simplices. 
c. Elytra costis quatuor sutura margineque elevatis .... Sp. 16 20. 
d. Elytra punctato-striata ....... Sp. 21 23. 
A.—a. 
1. A. rufipes Dej. Cat. 88 . Buprestis rufipes Pabr. Ent. Syst. 1, 2, 188: Syst. El. 2,188. Oliv. 32, 16, 
tab. 7, f. 73. Say, Am. Ent. pi. 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. G i b b s i i Lee. 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. sex plag i a ta, l*tc viridi-xoea, thornce confertim punctato, obsolete canaliculato, antrorsum augus- 
tato, clytris nigris, macula oblonga magna antica, alterisque traosversis posticis duabus flavis, margiue basali viri- 
dixneo, profunde striatis apice bidentatis. Long. -43 — 54. 
Vermont and Northern New York. Head, thorax, body and legs of a uniform bright 
golden green. Antennm obscure bronze. Head and thorax densely punctured, the for- 
