Goleopterological Notices, V. 519 



phort, not as long as the head and prothorax ; third and fourth joints 

 f^ubequal, the former not quite three times as long as wide, slightly 

 shorter than the sixth, much less elongate than the fifth and equal 

 to the eighth, the latter much thicker; seventh as long as the fifth, 

 evenly and symmetrically fusiform ; club symmetrical. Prothorax 

 short, more than one-half wider than long, the basal lobe small and 

 rounded. Scutellum completely obsolete. Elytra longer than wide, 

 rather more than twice as long as the prothorax, slightly wider at 

 basal third or fourth, the sides broadly, almost evenly arcuate ; 

 sutural strias rather distant; apex obliquely truncate, the outer 

 angles rather narrowly rounded. Mes-epimera long and narrow, 

 extending nearly three-fourths to the coxse ; met-episterna narrow, 

 the suture coarse but smooth, arcuately approaching close to the 

 elytra anteriorly. Legs slender; posterior tarsi not as long as the 

 tibise but with the basal joint as long as the next three. Length 

 L25 mm. ; width 0.7 mm. 



Represented in my cabinet from Rhode Island, Pennsylvania and 

 Michigan. The two specimens which I took near Philadelphia are 

 both pale, but probably from immaturity, as I can perceive no struc- 

 tural differences. It does not vary much in size, and the measure- 

 ments are taken from an average specimen. 



B. rolllistllla n. sp. — Broadly oval, highly polished, snbglabrous and 

 impunctate, black, the legs, aiiteinise and abdominal apex paler. Heud 

 slightly in flexed ; eyes moderate, separated by nearly twice their own width ; 

 epistomal suture completely obsolete ; antennse rather widely separated, very 

 slender, fully as long as the head and prothorax, the third joint slender, four 

 or five times as long as wide, distinctly longer than the fourth and equal to 

 the fifth, fourth, sixth and eighth equal, the latter only just appreciably 

 thicker, seventh longer than any of the preceding four, ninth elongate, 

 obconical. Pi-othorax one-half wider than long, the apex not visible from 

 above, barely two-fifths as wide as the base, the median lobe of the latter 

 rather feebly rounded but distinct ; basal angles somewhat short but acute. 

 Scutellum completely wanting. Ebjtra barely as long as wide, not quite twice 

 as long as the prothorax, the sides very evenly elliptical and exactly continu- 

 ous with those of the prothorax ; apex unusually narrow, the angles rounded ; 

 sutural and lateral striae deep, the basal entire though feeble near lateral 

 fifth., Mes-epimera rather short, scarcely extending two-thirds to the coxae, 

 the met-episterna narrow, parallel, the suture deep and coarse ; epimera dis- 

 tinct. Legs slender, the basal joint of the hind tarsi not as long as the next 

 three. Length 1.2 mm. ; width 0.8 mm. 



Texas. 



The unusually elongate third antennal joint, with the seventh 



