The predominant colour of the adult wasp is metallic green to turquoise to iridescent blue, depending on age, with a yellow scape and white tarsi which have a dark brown terminal segment.

[1] The type locality of Euderus set was Inlet Beach, Florida and it has since been recorded throughout the midwestern, southcentral and southeastern United States.

It then manipulates the host so that it speeds up its development, metamorphoses into an adult and chews its way up to the surface months earlier than normal.

[3] The E. set larva then consumes the host and chews through its head to emerge as an adult.

[1] The specific name is the name of the Egyptian god Set, who trapped his brother Osiris in a sarcophagus before killing him and cutting him up into little pieces.