Female wood wasps are larger than males with their ovipositor that is used for laying eggs is very long and sometimes longer than her own body. The wood boring wasps ovipositor is only used for laying eggs and can not sting in order to defend its self.

The Female wasp will search for the appropriate dead or dying tree with the most likely tree being a pine, spruce or fir tree. The female wasp will then insert her ovipositor into the wood and lay between 1 and 7 eggs at a time. In around 3 to 4 weeks time, the eggs will hatch to produce larva.