[5] The females of the species use their ovipositor to deposit their eggs into dead and dying deciduous trees[3] such as beech, elm, maple, and oak, which the larvae burrow inside of and feed upon.
The female will die after this process, and carcasses can sometimes be seen stuck to the bark of host trees.
[5] Megarhyssa macrurus, M. greenei, and M. atrata are the natural predators of this species.
[7] The female Megarhyssa seeks out the larvae within the tunnels bored by this species.
[4][5] The species is not considered harmful to humans, and does not sting or bite.