Elaphidion mucronatum (Spined Oak Borer).
 
 
 
Size: approx. 18 mm. Photo: 05/12/15, 9 pm.


The Spined Oak Borer is a common long-horned beetle with very long femoral spines. Its larvae feed underneath dead hardwood bark for the first year and than deeper in the second year.  
 
 
bug guide (this photo):
http://bugguide.net/node/view/1066515