E.  Riek, ?A new species of Proctotrupes reared from the fern weevil (Hymenoptera, Proctotrupidae).?, Proceedings of the Linnean Society of New South Wales, vol. 80, p. 147, 1955.

E.  Riek, ?Australian wasps of the family Proctotrupidae (Hymenoptera: Proctotrupoidea).?, Australian Journal of Zoology, vol. 3, pp. 106-117, 1954.