New records of interaction between Pseudoxenos (Strepsiptera) and the solitary wasp Pachodynerus grandis in Brazil (Hymenoptera, Vespidae, Eumeninae) with an updated worldwide checklist of eumenine host species of Pseudoxenos.

Interactions between Strepsiptera (Pseudoxenos Saunders, 1872) and solitary wasps (Eumeninae) are recorded for the first time in Brazil for Pachodynerus grandis Willink Roig-Alsina, 1998. An updated worldwide checklist of the host species of Eumeninae for Pseudoxenos is provided.