104 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 65 



Buprestis ruficoruu Sturm, Catal. Ins. Sammlung, 1826, p. 105. 

 Chrysohothris ruficornis Stubm, Catal. Kafer Sammlung, 1843, p. 61. 

 Chrysobothris rotundicoUis Castelnau and Gory, Mon. Bupr., vol. 2, 1837, 

 Chrysohothris, p. 51, pi. 9, fig 69. 



Male. — Form broadly elongate, strongly depressed, and subopaque ; 

 color dark aeneous with a cupreous tinge; elytra Avith numerous 

 irregular smooth costae; antennae aeneous, with joints four to 

 eleven in greater part testaceous; beneath cupreous, and more shin- 

 ing than above. 



Head feebly convex, with the front fiat and triangular, and the 

 sides obliquely narrowed to the vertex, where they are feebly arcu- 

 ately expanded; occiput rather wide, with a broad sm^ooth longi- 

 tudinal carina, which is grooved in the middle; front somewhat 

 uneven, but without distinct impressions; vertex without transverse 

 carina ; surface coarsely, densely, and irregularly punctate, the punc- 

 tures shallow and confluent, forming a network of irregular polyg- 

 onal areas, the sides of which are smooth and in some places 

 sharply elevated and rugose, rather densely clothed with long, very 

 fine erect hairs, which do not conceal the surface; eyes not very 

 large, narrow, feebly convex, bottom and top about equal in width, 

 but more truncate at the bottom, and separated on the occiput by 

 about the same distance that separates the antennal cavities; epis- 

 toma depressed, broadly triangularly emarginate in front, with the 

 lobe on each side strongly angulate at the middle; antennae rather 

 long, third joint only a little longer than the fourth, and the fol- 

 lowing joints very compact. Pronotum strongly transverse, nearly 

 two times as wide as long, widest at apical third, slightly narrower 

 behind than in front; sides broadly rounded to apical third, then 

 feebly sinuate and obliquely attenuate to the posterior angles, which 

 are rectangular; anterior margin arcuately emarginate, with an 

 obsolete median lobe ; base bisinuate, with a very broad median lobe, 

 which is broadly truncate in front of scutellum; surface uneven, the 

 disk moderately convex, with a broad median sulcus, wider in front 

 and limited on either side by a broad elevated smooth space, between 

 which and the margin are two large irregular depressions, one near 

 the anterior margin and the other at base, the latter margined pos- 

 teriorly with an acutely elevated carina, surface also densely and 

 coarsely punctate, the punctures irregularly placed and becoming 

 confluent in the depressions and at sides. Scutellum small, trian- 

 gular, with the sides equal in length, and the surface obsoletelj^ 

 granulose. Elytra distinctly wider than pronotum at base; sides 

 broadly rounded at humeral angles, nearly parallel to apical third, 

 then arcuately attenuate to the tips, which are separately, narrowly 

 rounded ; lateral margins feebly serrate to the middle, the teeth very 

 short and more closely placed toward the apex; humeri not very 



