268 New American Species, fyc> 



ginated frontal line, the third joint of the antennae is cylindri- 

 cal, altogether different in form from the fourth, and the 

 ultimate joint is not abruptly contracted near the tip ; in 

 these and many other characters it obviously differs from the 

 present species. In some specimens the anterior margin of 

 the thorax is obscurely piceous. 



27. E. collaris. Black ; thorax rufous ; frontal line not re- 

 flected ; second and third joints of the antennae subequal. 



Elater collaris, Melsh. Catal. 



Description. Head black, the frontal transverse line or tip 

 of the clypeus not in the slightest degree reflected, but con- 

 siderably elevated above the surface of the nasus : antennce 

 serrate, second and third joints subequal and nearly alike 

 in form ; thorax bright rufous, posterior spines acute : 

 scutel black, orbicular : elytra black, with impressed, 

 punctured striae : pectus each side bright rufous. 



Length rather less than seven-twentieths of an inch. 



Herbst considers this as a variety of the thoracicus Fabr. ? 

 to which indeed it is very similar, but that species differs in 

 having the tip of the clypeus, or the transverse frontal line 9 

 reflected, and the third joint of the antennae much longer and 

 more dilated than the second. Our species is also very simi- 

 lar to the verticinus, Beauvois, but the latter is greatly larger, 

 the head is either partially or entirely rufous, and the third 

 joint of the antennas is much longer than the second ; it has 

 been called rubricollis by Herbst, but Beauvois' name ha? 

 the priority. 



