The poor deluded wasp is called Lissopimpla excelsa.
I could not improve on the original title, so I let it be. (Don't worry, it's only botany and entomology, so it's safe for work.) A video from New Scientist explains how the wily Australian tongue orchid dupes wasps into having flower sex so the orchid can spread its pollen.
Orchid's sexual deception triggers ejaculation
Wasp photo from Pbase>>