326 GEO. H. HORN, M. D. 



majority of species before me the legs are as described; one specimen 

 before me has the hind legs also rufous. It resembles the figure of 

 B. higuttatus, 01., and also B. bipustulatus, Fab., by description, but 

 distinct from both by many characters. In our own fauna it resem- 

 bles B. bivulneratus, II., hut differs by the disc of the elytra flat, the 

 striae less deep and the position of the spot. 



Widely distributed in its range, but not common, in Georgia, Illi- 

 nois, Texas and Dacota. 



B. limbntus, n. sp. — Broadly oval, robust, black, sub-opaque, clothed 

 with cinereous pubescence, elytra black with elongate reniform rufous space, 

 witu the emargination external, on each. Head elongate oval, black, sub- 

 opaque, densely punctulate, sparsely cinereo-pubescent, front sub-carinate. 

 Antennae longer than head and thorax, black, four basal joints rufous. Thorax 

 twice as wide at base as long, apex truncate, base moderately lobed at middle, 

 on each side broadly rounded, sides arcuate and gradually narrowing to apex : 

 surface densely punctured with moderately large punctures evenly disposed, 

 median line at base distinctly impresssd and smooth, clothed with cinereous 

 pubescence, but not densely. Scutellum sub-quadrate, emarginate at tip, 

 clothed with whitish pubescence. Elytra as broad as long, disc sub-depressed, 

 striate, striae distantly punctured, intervals flat, densely punctulate, humeri 

 moderately prominent, sides arcuate, apices rounded, surface clothed sparsely 

 with cinereous pubescence, color black, with long reniform rufous space attain- 

 ing the sides near apex and also the apex. Pygidium black, sparsely but 

 coarsely punctured, clothed with whitish hairs. Beneath black, cinereo-pubes- 

 cent. Antennas and middle legs rufous, hind legs black. Length .12 inch ; 

 3 mm. 



The pubescence gives this species a pruinose aspect. The elytra 

 are more rufous than black, the latter color forming a narrow space 

 along the suture and base, extending down on the sides to near the 

 middle and terminating in a dilated end ; the rufous space is, there- 

 fore reniform in shape. 



Occurs in the Peninsula of Lower California and also in Sonora, 

 Mexico. 



B. discolor, n. sp. — Form moderately robust, black, clothed with moder- 

 ately long, cinereo-pubeseence, elytra ferruginous with dark spaces indistinctly 

 limited at sides, base and base of suture. Head black opaque, densely punctu- 

 late, sparsely pubescent, occiput with finely impressed median line. Antennas 

 rufous, slightly longer than head and thorax. Thorax scarcely twice as wide 

 at base as long, sides straight, gradually convergent and rounded at the an- 

 terior angles, base with moderate truncate lobe, on each side slightly sinuate, 

 surface moderately convex, coarsely punctured, shining, median line at ,base 

 impressed and shining, clothed with yellowish cinereous pubescence with a 

 paler line on the median line and toward the sides. Scutellum sub-quadrate, 

 broader than long, emarginate at tip, clothed with white pubescence. Elytra 



