SOME NORTH AMERICAN INSECTS. 177 



mate tarsal joint distinguish it from other species. Resembles cucuTr 

 latus. 



43. E. cuculiatus, Nob. (Ann. Lye. N. Y.). May be distinguished 

 from soleatus by the clypeus being obviously indented above, and more 

 obtuse, almost emarginate on the anterior edge; the antennae are more 

 slender, and the last joint not, or hardly longer than the preceding one : 

 thorax more slender, and the spines more obtuse, shorter, and rounded 

 at tip : the larger lobe of the tarsi is not so prominent. The thoracic 

 spines resemble those of hsemoroidalis, Fabr., but are more excurved. 



44. E. dilectus, Nob. (Ibid.), The penultimate tarsal joint of this 

 species is produced beneath into a membranaceous lobe. Near the de- 

 scription of bilineafus, Web., Fabr. 



45. E. vespcrtinus^ Fabr. The penultimate tarsal joint is minute, 

 but is extended beneath into a dilated membranaceous lobe, half the 

 length of the last joint. This species varies considerably; the elytra 

 have generally a connecting black band beyond the middle; they are 

 rarely nearly all black, with one or two small spots, tip and humerus 

 testaceous : the thoracic vittae are sometimes reduced to very small 

 spots : scutel always testaceous. 



46. E. circumscriphis, Germ. The penultimate tarsal joint is at 

 least half the length of the last, and is produced beneath into a lobe. 



47. E. biseetus, Nob. (Journ. Acad, Nat. Sc). Penultimate tarsal 

 joint remarkably short above, hardly visible, but produced beneath into 

 a dilated lobe, two-thirds the length of the ultimate joint. 



48. E. exslriatus, Nob. This is the E. geminatus, Nob. (Ann. Lye. 

 N. Y.). Elytra destitute of striae ; joints of the tarsi, excepting the 

 terminal one, with dilated lobes beneath. I change the name, as that 

 o[ geminatus was previously given by Germar to a Brazilian species. 



49. E: bdlus, S. (Journ. Acad. Nat. Sc. III., p. 168.). The penul- 

 timate tarsal joint is dilated beneath into a lobe. A very pretty little 

 species. 



50. E. bitius. Black ; with two large testaceous spots on each ely- 

 tron. — Inhab. Indiana. 



Body black, with short yellowish hairs, almost sericeous, punctured : 

 clypeus rounded at tip, somewhat prominent ; antennae scarcely serrate, 

 rufous ; second joint more than half as long as the third ; terminal joint 



