202 New Jlmerican Species of the Genera 



Elater trilineatus, Melsh. Catal. 



Description. Body short, robust : head piceous-black, 

 transverse line prominent, regularly rounded, acute : an- 

 tennce hardly serrated, piceous, second and third joints 

 sub-equal, the second joint rather longer: thorax large, 

 convex, rufous, with two longitudinal, dilated blackish lines, 

 which do not reach the base ; posterior angles prominent, 

 acute : scutel suborbicular : elytra brownish-black, with 

 regularly punctured, impressed striee : venter piceous at 

 tip : feet pale. 



Length rather more than a quarter of an inch. 



Var. a. A rufous dilated vitta extends from the humerus 

 towards the tip of the elytra. 



Var. b. Vitta on the elytra, and beneath rufous ; feet white, 



Var. c. Thoracic vitta confluent and reaching the base. 



The specific name trilineatus is pre-occupied. 



17. E. quercinus. Black; front concave j feet pale. 



Elater quercinus, Melsh. Catal. 



Dfscription. Body slender, black, with rather long hairs : 

 head with the transverse line much elevated and emarginate 

 in the middle : antenna rather robust, serrated, three basal 

 joints rufous, second and third joints nearly equal : thorax 

 longer than broad, hardly narrowed before ; a very slightly 

 impressed longitudinal line ; anterior angles not wider than 

 the head ; posterior angles depressed, obtuse, piceous : 

 scutel orbicular : elytra with slightly impressed, deeply 

 punctured striae : feet pale yellowish, tinged with rufous. 



Length one-fifth of an inch. 



A common specie? 



