Ant queens producing male offspring that are two different species?!?

This is so crazy! It appears that *Messor ibericus* queens can produce males of two different species - both *Messor ibericus* and *Messor structor* - depending on their reproductive needs. They can then mate with the *M. ibericus* males when they want to produce more queens - or with the *M. structor* males if they want to produce more workers.