244 
REVISION OF TI1E BUPRESTIDvE OF THE UNITED STATES. 
is distinguished by the more convex and less densely punctured head, and the very pro¬ 
found oblique lateral impressions of the thorax. 
7. A. d efec t us, obscure-aeneus, capite cuprascente, sat fortiter baud deusc punctato, canaliculato, thorace 
latitudiue baud breviore, vage impresso, lateribus subrotundatis iiupressis, angulis posticis brevissime fere obtuse 
cariuatis, basi bifovcato, elytris fortiter dense granulatis, subuuicostatis, apice singulatim rotundatis, serrulatis. 
Long. -16—'19. 
Western States and Pennsylvania, Kansas. Differs from A. tcneus and other species 
of division B. by the much shorter and almost obsolete basal carinae of the thorax, as well 
as by the form of the ungues. 
8 . A. oti o sus, valde elongatus, supra obscure viridis, capite subtilius granulato-punctato, postice vix im¬ 
presso, tborace latitudiue baud breviore vage impresso, lateribus rectis, modice impressis, angulis posticis breviter, 
smpe fere obsolete cariuatis, basi bifoveato, elytris obscurioribus dense granulatis subunicostatis, apice rotundatis 
serrulatis. Long. '16 — 21. 
Say, Trans. Am. Phil. Soe. 6, 103. 
fAgrilus virens Gory, Mon. Bupr. 4, 259, tab. 43, f. 2 52. 
Middle and Western States, Kansas. Differs from A. egenus chieliy by tbe head 
being more finely punctured, and the thorax less strongly rugous, with the basal carinaj 
shorter sometimes almost obsolete, and by the form of the ungues. 
9. A. pusillus, obscure viridiaeneus, capite convexiusculo modice punctato, subcanaliculato, tborace latitu¬ 
diue baud breviore, cyaneo varicgato, lateribus subrotundatis profunde impressis, angulis posticis cariuatis, basi 
bifoveato, elytris fortiter granulatis, apice serrulatis rotundatis ct subacuminatis. Long. 12. 
Say, Trans. Am. Phil. Soe- G, 1G2. 
Bttpreslis pusilla Say, Am. S 3 T c. Nat. Hist. New Lork, 1, 252. 
One specimen, Kansas. Smaller than any other species known to me. In addition to 
the above characters the punctures of the thorax are more distinct than usual, so that it 
appears rather reticulate than rugous. 
A—c. 
10. A. difficilis, elongatus, supra obscurus, asnco vel cuprco-tinctus, subnitidus, capite piano, luteo-pubes- 
ceute, postice breviter sulcato, thorace rugoso, vage impresso, lateribus subrectis, postice subsiuuatis anguste im¬ 
pressis, angulis posticis longc cariuatis, elytris punctis fere subseriatis, pustice confuse granulatis, apice serratis ro¬ 
tundatis; subtus cupreo-teneus, abdomiue utrinque maculis luteo-pubcscentibus serie duplici ornatis. Long. 
■36— -50. 
Gory, Mon. Bupr. 4, 224, tab. 37, f. 215. 
Agrilus occidental™ Uhler, Proe. Acad. Nat. Sc. Phila., i , 416. 
Western States, Dr. Harris and Mr. J. Ph. Wild. A very distinct species, but so in¬ 
definitely described by Mr. Gory, that were it not for his mentioning the hairy yellow 
spots of the abdomen, the determination would be doubtful, or indeed impracticable. One 
