The elm borer (Saperda tridentata) is a species of beetle in the family Cerambycidae.

It is known from Canada and the United States.

It feeds on Ulmus rubra and Ulmus americana.

It acts as a vector for the fungus Ophiostoma ulmi, and as a host for the parasitoid wasp Cenocoelius saperdae.

[1] This Saperdini article is a stub.