OF THE UNITED STATES. ||<l 



1. M. imperfcctus, ater brevissime fusco-pubesccn^. t' titudine breviore, lateribua antico 

 fortius rotundatis, punctato, linea dorsali tenuissima Is 



marginali medio obsoleta, elytris fortius punctatis, vi\ stiiatis, pedibus rufis. L . J_'. 

 Lee. Proc. Acad. Nat. Sc. 6, 48. 



New York and .Man land. The antennae of the male are dark coloured and slightly 

 pectinate, those of the female are but little darker than the feet, and moderately serrate; 

 the front in one specimen is channel) d, but this is a character of but little value in the pre- 

 sent group of insects. The marginal line of the thorax is dislocated and interrupted at 

 the middle, the portion from the anterior angle being far above the shorl posterior por- 

 tion, which is connected with the base; the pectoral grooves are indistinct posteriorly; 

 the nails of the tarsi arc dilated and toothed at the middle. 



2. M. subsinuatus, ater vix fusco-pubescens, tborace latitudine ! , antrorsui us- 

 . lateribua obliquis Bubsinuatis i rotundati . | oaliculato, ad apicem tran 



sim marginato, angulis posticis planis paulo inflexis, linea marginali d - rugose 



punctatis, vix stiiatis, I aceis. Lor. 



LeConte, Proc. ' 



Harris, Trans. Hartford Nat. II 72. 



One male specimen found in the upper part of Georgia. The antenna: are three-fourths 

 as long as the body, and very slightly serrate; the pectoral grooves are deep and well 

 defined; the marginal line from the anterior margin of the thorax in this species almost 

 forms a junction with the carina of the ior angle, which, from the Battening of the 



latt< I out of its normal position, and forms the lateral edge; the basal portion 



of the true marginal line i~ deflexed as usual, and b< comes obsolete in fronl of the middle. 

 I i are aol toothed. 



3. M. triangularis, ater, pul latitudii 



summa i nfertim | viter fortius 



nali dislocata, 

 ant. 

 Let 



/' 



S il id W In my specimens, the antenna) ari ths as long 



as the body, and very slightly serrate: lerior angles are not flat I in the 



precedi ■. the anterior pari of the marginal line i rior ex- 



tends in front of the middle, and is deflexed, . • 



well-defined, and the claws are nol toothed. Gu6rin (Ann. . Fr., 2d Scr., 1,18" 



Eucnemis, bul Say expn rrans. \m. Phil. Soc, 6, [t 



the p naliculnte "each side of the middle." S t to hav< considered 



varietiesof this, as in the Journal of the \ individuals 



havii , and others with the third joint of the antennae less elongated. \ 



S I mention the flat and thorax, it will b 



prudent I r this as hi mailer than that required by hii 



