AMERICAN PIIII.OSOl'IIICAL SOCIKTV. 501 



to the scutel, and the anus Ih tridontatcd, the miiMle tootli ))cinL' 

 more slender and acute. A variety in my tuUectiun is destitute 

 of the punctured striaj of the elytra. 

 [Also a Dltcrca. — Lkc] 



4. B. OBSCURA F. (and iMelsh. Cat:il.) 

 IlerbBt says the side of the thorax is rectilinear, not arcuated. 



This would a<;ree better with hiri<hi F.; my specimens of 06- 

 srura are rectilinear only from before the middle to the base. 

 [Also a Dirrrca. — Lec] 



5. B. DKNTIPES Oermar. — This is the rharnrfm'stini of Mel- 

 shcimer's Catalogue ; but, as no mere catalogue can establish a 

 nanio, (lerniar's must be of course retained, because it is the first 

 name recognized by a description. 



[This and the two following belong to Chri/xnhnthrix. — Lf.c] 



0. 1?. iivi!i:rnat.v F. — From the specimen in my coUiction, 

 I am led to believe that the h///»niafa F., is but a variety of the 

 fronftih's Olivier, and that both have serrate elytra; but I have 

 not at present the means of referring to Olivier's work. My 

 specimen is reddish purple; thorax immaculate ; elytra serrate, 

 with but five green spots ; and the anterior thighs are armed 

 with a prominent tooth. 



7. B. SKxr.UTTATA nob. (Journ. Acad. Nat. Se.) — This name 

 being preoccupied by llerbst lor an American species, we change 

 it to sexsi'jnata. 



RJS. B. GiBBicoLis nob. (Journ. A. N. 8.) — This name is pre- 

 ccupied by Illiger for an European species, it must therefore be 

 hanged. 

 I [A species of Ptosxmn, ante, 104. — TiEr.] 

 Ml. B. rULCHELLA llerbst. — The vufnihis F., is probably the 

 same species ; but which of the two names has the priority I 

 cannot now ascertain, not having the date of Ilcrbst's volume. 

 There is some confusion amongst the species of the small group 

 to which this belongs, in consequence of the short dcscrijttioni 

 of Fabricius. Ilcrbst's description oi" this species cannot well 

 be mistaken. 1 have found it in Fcnn.sylvania. [159] Florida 

 and Arkan.sa. It is the oniata of Dejean's Catalogue; and 

 1830.] 



