220 
REVISION OP THE BUPRESTIDiE OF THE UNITED STATES. 
formes; mentuiu trapezoideum corneum. Scutellum miuutum rotuudatum. Prostcrnum breve latum, postiee ob¬ 
tuse rotuudatum; mesosternum planum emargiuatuui baud divisum, cum mctasteruo npice truDcato, baud conua- 
tum. Abdomen articulis duobus primis conuatis, sutura vix distincta. Tarsi articulis 3 et 4 lobatis, antici dila- 
tati, postici articulo lmo elongato, ultimo angusto, unguiculis simplicibus. 
A small species having very nearly the colour, form and sculpture of Ancylochira de¬ 
cora. The body is elongate, narrowed at each end, and convex. The thorax broadly 
rounded on the sides, truncate in front, nearly so behind. Elytra rounded behind, not 
serrate. 
1. C- p 1 a c i d a, viridi-mnea, undique dense punctata, tborace medio cupreo-micante, elytris striis parum iin- 
pressis, vittaque discoidali cuprea ornatis. Long. -3. 
One specimen collected in Oregon by Dr. J. K. Townsend, was given me by Mr. Willcox, 
as P/icenops placida of the Berlin Museum. It is, however, not at all related to that ge¬ 
nus either in appearance or character. 
Polycesta Sol. 
1. P. elata Lee. Proc. Acad. 1858, 68. 
Texas, Mr. H. Haldeman. 
2. P. cavata, nigra submnea, fronte concava, thorace tri-excavato medio subcarinato, elytris valde costatis, 
rude clatliratis, interstitiis (costis exceptis) suturaque parce punctatis. Long. -7. 
Lee. Proc. Acad. Nat. Sc. 1858, 68. 
Alabama, given me by Prof. Haldeman. Black, slightly bronzed. Head very coarsely 
punctured, front deeply concave. Thorax three times as wide as long, angulated on the 
sides at the middle, where it is broadest, rapidly narrowed to the apex, and slightly to 
the base: covered with very large punctures, unequally distributed, leaving the spaces be¬ 
tween the three large excavations very sparsely punctured; there is besides a small callus 
at the apex near each angle: the middle excavation is subcarinate. Elytra strongly cos¬ 
tate, the intervals between the costae with two series of very large quadrate punctures, 
the interstices sparsely punctured, sutural costa with a series of punctures: second and third 
costae smooth; they are parallel on the sides for two thirds their length, then obliquely 
narrowed, and irregularly serrate to the apex, which is slightly rounded. 
3. P. californica, nigra, submuea, fronte parum concava, thoracc tri-excavato, elytris valde costatis, modicc 
clathratis, interstitiis (costis exceptis) dense punctatis. Long. ‘75. 
Lee. Pacific R. It. Expl. & Surveys, Ids. 47tb Par. 45: Proc. Acad. 1858, 68. 
Sacramento, California, collected by Mr. Wittick and given me by Mr. S. S. Rathvon. 
4. P. obtusa, nigra submnea, fronte plana, thorace planiusculo, medio postice foveato, elytris postice obtuse 
rotundatis, seriatim variolatis, interstitiis parce punctulatis, 3io antice latiore. Long. ’48. 
Lee. Proc. Acad. Nat. Sc. 1858, 68. 
