REVISION OF THE BUPRESTIDA OF THE UNITED STATES. 251 
very short; the ungues are strongly toothed. Our species have been divided into three 
genera, which have, however, been reunited by Lacordaire into a single genus, dis- 
tinguished by having the antennz received in grooves. 
Bracuys Solier. 
The species of this genus form several very distinct groups, which I should consider as 
genera, but that Lacordaire states that they merge imperceptibly together. Those found 
in our territories may be thus arranged. 
A. Corpus elongatum, prosternum angustum, (Taphrocerus Sol.) - - - - Sp. 1. 
B. Corpus ovatum, prosternum postice fissum, (Brachys Sol.) - - - - Sp. 2—6. 
C. Corpus ovatum, prosternum latum integrum — - - - - - - Sp. .7 
D. Corpus triangulare, prosternum latissimum, tibiee dilatatee, (Metonius Say, Pachyscelis Sol.) Sp. 8—9. 
A. 
1. B. gracilis, elongata, eeneo-nigra, capite late excavato, thorace ineequali, elytris antice seriatim punctatis, 
euttis nigro-geneis fasciisque vagis parce albo-pubescentibus seepe ornatis; ano rotundato, haud serrato, segmento 
yentrali ultimo sulco marginali circumducto. Long. -14—-21. 
Trachys gracilis Say, Aun. Lyc. Nat. Hist. New York, 1, 253. 
Aphanisticus gracilis Say, Trans. Am. Phil. Soc. 6, 165. 
Brachys (Taphrocerus) alboguttata Mann, Enum. Bupr. 120; Laporte & Gory, Mon. Bupr. 2, tab. 1, f. 1. 
Middle and Southern States. 
B. 
2. B. ovata, antice triangularis obtusa, postice sensim angustata, senea, capite valde excavato, thoraceque in- 
zequali fulvo-pubescentibus, elytris parce irregulariter punctatis, fasciis albo fulvoque pubescentibus sinuatis ornatis, 
costa angusta versus latera lineisque discoidalibus obsoletis instructis; ano late truncato, pectinato, segmento ven- 
trali ultimo sulco ambiente, maris postice emarginato, longe ciliato, femine truncato. Long. -19—-265. 
Buprestis ovata Weber Obs. Ent. 76: Herbst, Kifer, 9, 245, tab. 156, f. 1. 
Trachys tesselata Fabr. Syst. El. 2, 218. 
Brachys aurulenta Kirby, Fauna Bor. Am. 162. 
Brachys molesta Gory, Mon. Bupr. 4, 332, tab. 56, f. 325. 
Brachys tesselata Laporte & Gory, Mon. Bupr. 2, 3, tab. 1, f. 2. 
Middle, Southern and Western States. The last synonym belongs to the smaller variety. 
3. B. lugubris, antice triangularis obtusa, postice sensim angustata, supra nigra, capite valde excavato, 
thoraceque inzequali parce albo-pilosis, elytris vage punctatis, fasciis sinuatis albo-pilosis, costa angusta versus 
latera instructis; ano late truncato, subtiliter pectinato, segmento veutrali ultimo sulco marginali ambiente, maris 
emarginato ciliato, feminze truncato. Long. -21—-25. 
Middle and Southern States. Only differs from the preceding by the pubescence being 
entirely white, and the tip of the abdomen more finely pectinate: the body is perhaps a 
little less attenuated behind, and more rounded. 
VOL. XI.—33 
