236 REVISION OF THE BUPRESTID OF THE UNITED STATES. 
Sexus differentia sicut in praecedente, sed tibize posticzs maris curvatee. 
Laporte & Gory, Mon. Bupr. 2, 53, tab. 9, f. 71. 
New York, Maine, Lake Superior. Closely resembles the preceding, but the thorax is 
more abbreviated, and distinctly dilated in front, the costze of the elytra are narrower and 
less connected by transverse smooth lines, the colour is more coppery, and finally the pos- 
terior tibis are curved, especially in the males. 
16. CG. pusilla, obscure cuprea, fere equaliter dense punctata, thorace latitudine fere duplo breviore, lateri- 
bus rotundatis, subinzequali, sulco dorsali tenui, elytris costis tenuibus praecipue postice subreticulatis, fovea ante 
medium, fasciaque postica obliqua vage impressis, subtiliter serratis, apice singulatim rotundatis; subtus znea, 
prosterno sat dense punctato. Long. -25—32. 
Mas segmento ventrali ultimo emarginato, tibiis anticis curvatis, ad apicem intus subito dilatatis, intermediis 
curvatis apice sublatioribus. 
Femina seymento ventrali ultimo apice anguste emarginato, tibiis anticis paulo curvatis, reliquis rectis. 
Laporte & Gory, Mon. Bupr. 2, 53, tab. 10, f. 72. 
Chrysobothris strangulata Mels. Proc. Acad. Nat. Se. Phila. 2, 147. 
Middle and Southern States, rare. Differs from the following by the broader form 
and more densely punctured upper surface, as well as by the slightly unequal thorax, 
somewhat reticulated elytral costee and more finely serrate elytra. The species varies 
somewhat in the form of the thorax, and in the elytral impressions: in some specimens 
the former is scarcely one half wider than its length, and the disc each side of the dorsal 
groove is less punctured: on the elytra the anterior impression is usually a vague fovea, 
but is sometimes prolonged obliquely upwards and outwards; the posterior one is oblique 
and sinuate, sometimes not very distinct: the costa are narrow, and have a tendency to 
be connected by reticulations especially behind and outside of the posterior impression. 
17. GC. debilis, elongata, piceo-eenea, punctata, thorace latitudine vix sesqui breviore, lateribus parallelis, 
postice incurvis, transversim rugoso vix vage impresso, elytris costis parum distinctis, 3ia obsoleta, fovea quadrata 
ante medium, maculaque transversa sinuata pone medium impressis, cuprascentibus, serratis, apice singulatim ro- 
tundatis; subtus eenea, dense punctata, longius pubescens, abdomine medio parce punctato. Long. -30. 
Mas segmento ventrali ultimo emarginato, tibiis anticis apice intus breviter dilatatis. Femina latet. 
Western States: one male from Ohio, Dr. Schaum. The thorax is not all channeled, 
the punctuation is regular, and the elytral coste straight. 
18. OC. disjuncta, cuprea, elongata, thorace punctato, transversim rugoso, latitudine vix sesqui breviore, la- 
teribus parallelis postice incurvis, haud impresso, elytris sat dense minus subtiliter punctatis, costis solitis parum 
distinctis, fovea magna quadrata ante medium, alterisque duabus transversim positis pone medium impressis, ser- 
ratis, apice singulatim rotundatis; subtus senea, sterno dense punctato. Long. -30. 
Mas segmento yentrali ultimo emarginato, tibiis anticis paulo curvatis ad apicem breviter dilatatis. Iemina 
latet. 
One specimen, Arizona. Related to the preceding, but differs by the punctures of the 
