220 REVISION OF THE BUPRESTID OF THE UNITED STATES. 
formes; mentum trapezoideum corneum. Scutellum minutum rotundatum. Prosternum breve latum, postice ob- 
tuse rotundatum; mesosternum planum emarginatum haud divisum, cum metasterno apice truncato, haud conna- 
tum. Abdomen articulis duobus primis connatis, sutura vix distincta. Tarsi articulis 8 et 4 Icbatis, antici dila- 
tati, postici articulo 1mo elongato, ultimo angusto, unguiculis simplicibus. 
A small species having very uearly 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. placida, viridi-zenea, undique dense punctata, thorace medio cupreo-micante, elytris striis parum im- 
pressis, vittaque discoidali cuprea ornatis. Long. -3. 
One specimen collected in Oregon by Dr. J. K. Townsend, was given me by Mr. Willcox, 
as Phcenops placida of the Berlin Museum. It is, however, not at all related to that ge- 
nus either in appearance or character. 
Pouycesta Sol. 
1. P. elata Lec. Proc. Acad. 1858, 68. 
Texas, Mr. H. Haldeman. 
2. P. cavata, nigra subzenea, fronte concaya, thorace tri-excavato medio subcarinato, elytris valde costatis, 
rude clathratis, interstitiis (costis exceptis) suturaque parce punctatis. Long. -7. 
Lec. 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 he- 
tween the three large excavations very sparsely punctured; there is besides a small callus 
at the apex near each angle: the middle excavation is subearinate. Elytra strongly cos- 
tate, the intervals between the coste with two series of very large quadrate punctures, 
the interstices sparsely punctured, sutural costa with a series of punctures: second and third 
costes 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, subsenea, fronte parum concava, thorace tri-excavato, elytris valde costatis, modice 
clathratis, interstitiis (costis exceptis) dense punctatis. Long. -75. 
Lee. Pacific R. R. Expl. & Surveys, Ins. 47th Par. 45: Proc. Acad. 1858, 68. 
Sacramento, California, collected by Mr. Wittick and given me by Mr. 8. 8. Rathvon. 
4. P. obtusa, nigra subzenea, fronte plana, thorace planiusculo, medio postice foveato, elytris postice obtuse 
rotundatis, seriatim yariolatis, interstitiis parce punctulatis, 3io antice latiore. Long. -48. 
Lec. Proc. Acad. Nat. Se. 1858, 68. 
