AMERICAN COLEOPTERA. 115 



B. <Iiuii(liiifliS, Er. — Piceous shining, basal half of elytra rufous, legs 

 testaceous. Head smooth, black shining, oval. Antennae as long as head 

 and thorax, piceous, basal joints paler, five to ten transverse, eleventh oval. 

 Thorax piceous, slightly broader than the elytra at base, smooth, shining. 

 Elytra as long as wide, smooth, shining, punctures obsolete, basal half nearly, 

 and an extremely narrow apical border yellowish-red. Abdomen piceous, apical 

 margins of segments paler, surface sparsely punctate. Body beneath piceous, 

 abdomen coarsely punctate. Legs testaceous, anterior coxse darker. Length 

 .16— .20 inch; 4—5 mm. 



Male. — Seventh ventral distinctly sinuate, the middle more prominent. 



Female. — Abdomen simple. 



This species may be known by the color of the elytra. The palpi 

 are short and stout, third joint distinctly pubescent, fourth evidently 

 conical. 



Occurs in the Gulf States, but not common. 



B. iutriisiis, n. s]>. — Piceous shining, elytra rufous, legs testaceous. Head 

 oval, smooth black, shining. Antennae as long as head and thora.x formed 

 as in dimidiatus. Palpi as in diinidiatus. Thorax variable in color from rufo- 

 piceous to black, smooth shining, form as in dimidiatus. Elytra entirely rufous 

 or rufo-testaeeous, the series of punctures as follows; sutural moderately dis- 

 tinct, dorsal of five distinctly impressed, lateral finely and obsoletely punc- 

 tured. Abdomen pitchy black, tips of segments paler, punctured as in dimidiatus. 

 Body beneath piceous, abdomen coarsely punctured, apical half of segments 

 smoother last two segments with longer fimbriae. Legs testaceous. Length .24 

 inch; 6 mm. 



Male. — Sixtli ventral lontritudinally rather deeply impressed and near the 

 tip a spongy space divided in two lateral portions. Anterior tarsi rather 

 strongly dilated. 



Female — Ventral segments simple. 



I am not positive concerning the validity of this species. Speci- 

 mens have been returned to some of his correspondents in tliis country 

 by Fauvel as riiKjulatux var. The sexual characters are so well marked 

 that there will be no difficulty in determining the identity of the pres- 

 ent species with any of those of Europe. The appearance in the pres- 

 ent genus of the spongy space so often seen in Taclitnus is rather re- 

 markable, while the general aspect also approaches that genus. 



This species is very variable in the color of the thorax, some are 

 entirely black, others piceous with paler basal margin, others again 

 ^have the thoi-ax and elytra similar in color. The anterior coxae are 

 also variable in color. 



Occurs from Canada to I'eunsylvauia. * 



B. oingiilsitUN, Mann. — Black, shining, elytra and often the thorax rufous, 

 legs testaceous. Head black, shining, rather broadly oval. Antennre slightly 

 longer than the head and thorax, piceous, terminal and two basal joints paler. 

 Palpi short, stout, last joint distinctly conical. Thorax variable in color from 

 rufous to black, smooth shining, slightly broader at base than the elytra, hind 



