36 Dr. E. Brendel's Synopsis of the genera 



B. Juvencus, Brendel. Head behind very little convex and very obsoletely 

 carinate. Elytra punctured. % unknown. Long 1.4 m. ni. 

 . b. Front concave. Occiput one-carinate. 



B. confinis, Lee. Head behind "carinate in the middle. Thorax obsoletely 

 three-lineate, two-carinate, at the base each side of the basal 

 groove are two acute tubercles. % unknown. Long 2.2 in. ni. 



c. Front concave. Occiput three-carinate. 



B. armiger, Lee. Head behind with a high carinate tumor. Thorax three- 

 lineate, with three discal recurved spines. % .anterior tibiae and 

 intermediate thighs armed near the middle with very strong 

 prominent thorns. Long 2.4 m. m. 



B. monstrosus, Lee. Head behind not much tumorous, three-carinate. Thorax 

 convex, sculpture of the lines and earinse obsolete. % , ante- 

 rior tibise and intermediate thighs strongly emarginate near 

 the knee joints. Long 2.4 m. m. 



B. ferox, Lee. (?) Head as in monstrosus. Thorax more definitely sculp- 

 tured. % as in monstrosus. The last joint of the antennee 

 shorter than in monstrosus. Long 2.4 m. m. 



II. — Posterior tibiee armed on the end with a long, slender spine, 

 a. Front refuse. Vertex convex, surrounded by a sulcus. 



B. frontalis, Lee. Head smooth behind, not carinate. Thorax tri-lineate. 

 Elytra impunctate. Stature resembling/emr. Long 2.4 m. m. 

 * Elytra punctured. 



B. scabriceps, Lee. Head scabrous, not carinate. Thorax three-lineate. Ely- 

 tra sparsely punctulate. Last antennal joint armed with a 

 tooth at the base. Long 2.0 m. m. 



B- punctatus, Lee. Head smooth, not carinate; thorax three-lineate: elytra 

 very strongly punctured. % , last antennal joint armed with 

 a tooth at the base. Long 2.1 m. m. 



B. riparius, Say. Head slightly carinate on the vertex. Elytra very percepti- 

 bly punctured. Thorax laterally emarginate behind the mid- 

 dle. Last antennal joint very long. % , last antennal joint at 

 the base with a rather prominent long tooth. Stature slender. 

 Long 1.5 m. m. 



B globosus, Lee. Head strongly carinate on the vertex. Elytra slightly punc- 

 tulate. Thorax laterally entire. Last antennal joint short. 

 % , penultimate antennal joint globose, larger than the last, 

 ■which has no tooth. Long 1.7 m. m. 

 s-s- Elytra decidedly impunctured. 



B. nigricans, Lee. Head tubereulate, not carinate on the vertex. Thorax 

 three-lineate. % , penultimate antennal joint as large as the 

 last. Long 1.9 m. in. Hah. — Northwestern States. 



B. albionicus, Aube. Head not carinate on the vertex. Thorax two-lineate. 

 %, ultimate antennal joint armed with a tooth. 5* j hast alxlo- 

 minal segment conical, acute. Long 2.2 m. m. Hab. — Califor- 

 nia. 



B. spretus, Lee. Vertex not carinate. Thorax bilineate. % , last antennal 

 joint not dentate; the penultimate as large as the last. % , last 

 abdominal segment not acute. Long 1.6 m. m. Hab. — Penn. 





