The invention relates to apparatus for artificially inseminating humans and other animals of the type having a reproductive system which includes a vagina and a uterus. The apparatus consists of a locating tube which is adapted to be inserted into the vagina of the human or animal and one end of the tube located against the cervix of the uterus around the cervical canal. A delivery member is adapted to be passed along the locating tube and into the uterus for delivery of semen into the uterus.