Wikipedia
Nuptial flight is an important phase in the reproduction of most ant, termite, and some bee species. During the flight, virgin queens mate with males and then land to start a new colony, or, in the case of honey bees, continue the succession of an existing hived colony.
Usage examples of "nuptial flight".
Her last memory, interestingly, it seemed, had been of her Nuptial Flight.
I do not know how to describe it except by saying that it seemed as if an uncountable host of minute insects a hundredth the size of midges had been concealed in the crevices of the rough pavement, and now were drawn by the moonlight to their nuptial flight.
Rosbone ingeniously argues that the author, a wingless neuter-female worker, yearns hopelessly to be a winged male, and to found a new colony, flying upward in the nuptial flight with a new Queen.