These wasps are observed on tree bark wherever they are hugely keen on the larva in the Pigeon Hornetail.
This species (Monobia Quadridens) is mostly witnessed in tunnels as well as the deserted nests of mud daubers or https://hamzahwmnt876159.targetblogs.com/29125916/giant-pencil-6ft-things-to-know-before-you-buy