618 TRANSACTIONS OF THE 



■{"{"f" Tarsi dilated, operculiform . 



56. E. MARMORATUS F. — Our largest species of this division 

 that 1 have seen. I have found it as far north as Canada, and 

 Mr. Nuttall presented me a specimen from Arkansa. It occurs 

 both in Pennsylvania and Indiana, and Dr. Harris sent me a spe- 

 cimen -which was found in N. Carolina. The thorax may be de- 

 scribed as unequal, as it has several indentations ; the pectus has 

 deeply impressed tarsal grooves; the clypeus is concave. [181] 



57. E. OPERCULATUS S., Ann. Lye. N. Y.* — Belongs to this 

 division. Dr. Harris sent me specimens from Massachusetts 

 and New Hampshire. 



[Probably the species afterwards described by me as Adelocera 

 hrevicornis is here intended. — Lec] 



58. E. AURORATUS. — Blackish, sprinkled with golden scales; 

 pectoral tarsal impressions not profound. 



Inhabits New Hampshire. 



Body blackish, punctured, with bright yellow scales : clypeus 

 not conspicuously concave before : thorax convex ; a longitudi- 

 nal, impressed, but not much dilated line, obsolete on the ante- 

 rior third ; lateral edge regularly arcuated to the origin of the 

 posterior angles, which are rather broad, acute, and extending 

 outward and backward, with their exterior edge perfectly rectilinear 

 to the tip, basal edge sinuous ; elytra destitute of elevated lines at 

 base : pectus, tarsal impressions not deeply marked, but distinct, 

 concave : tarsi rufous. 



Length eleven-twentieths of an inch. 



Sent to me for examination by Dr. Harris. The lateral edge 

 of the thorax is not undulatedly arcuated as in E. mavmoratiis F., 

 and E. opcrculafus S. 



[Belongs with the two following species to Adelocera. — Lec] 



59. E. OBTECTUS. — Thorax with a much dilated groove ; elytra 

 with elevated lines at base, one of which extends beyond the 

 middle. 



Inhabits Massachusetts. 



* [This is an error. There is no species in the Ann. Lye. N. Y. bear- 

 ing) the name of operculatus. ^ Is it not the erosus S. Ann. Lye. i., p. 

 258?— H.l 



[Vol. VI. 



