During one of the scenes inside the dome, Lynne Frederick speaks with a English accent instead of the American accent she uses during the rest of the film.
The ant-queens seen are actually a species of wasps. This choice has been most probably made as to not seriously disturb several ant-states. However, ant-queens shed their wings when going into pregnancy and developing the huge white abdomen. It needs to be remarked that the choice for not ripping out the wasps' wings speaks in favor for the film makers.