pp. Oldroyd, H. 1955. The Diptera of Auckland and Campbell islands. Part 4. A wingless dolichopodid (Diptera) from Campbell Island. Rec. Dominion Mus. 2: 243-46. Oldroyd, H. 1956. A new genus and species of Dolichopodidae (Diptera) from Malaya. Proc. R. Entomol. Soc. Lond. (B) 25: 210-11. Oldroyd, H. 1957: The horseflies (Diptera: Tabanidae) of the Ethiopian Region. Volume III. Subfamilies Oldroyd, H. 1958, Some Asilidae from Iran. Stuttg. Beitr. Naturk., No. 9:1–10 Oldroyd, H. 1963: The Tribes and genera of the African Asilidae (Diptera). Stuttgarter Beiträge zur Naturkunde aus dem Staatlichen Museum für Naturkunde in Stuttgart. Nr. 107. Oldroyd, H. 1964: Diptera from Nepal. Asilidae. Bull. Br. Mus. (Nat. Hist.) Entomol. 15: 237-54. Oldroyd, H. 1969: The family Leptogastridae (Diptera). Proc. R. ent. Soc. Lond. (B) 38: 27-31. Oldroyd, H. 1970: Studies of African Asilidae (Diptera). Bulletin of the British Museum. Oldroyd, H. 1972. Robber flies (Diptera: Asilidae) of the Philippine Islands. Pac. Insects 14: 201-37. Oldroyd, H. 1972: Two robber flies (Diptera, Asilidae) of unusual structure. - Journal of Natural History 6: 635-642; London. Oldroyd, H. 1974. An introduction to the robber flies (Diptera: Asilidae) of South Africa. Annals of the Natal Museum 22: 1-171. Books by Oldroyd 1939: Edwards, Oldroyd and Smart: British Blood-sucking flies. 156 pp 1965: The Natural History of Flies. New York: W. W. Norton. 1968: Elements of entomology. Weidenfeld and Nicolson. 1969: Handbook for the identification of British Insects. Diptera Brachycera. Sections Tabanoidea and Asiloidea. Royal Entomological Society of London. 132 pp. January 1970: Collecting, Preserving and Studying Insects (2nd edition). Hutchinson. 1970: Elements of entomology: An introduction to the study of insects ([The Universe natural history]). Universe Books. 1970: Diptera: Introduction and Key to Families. In the "Handbooks for the Identification of British Insects Series" (1970) June 1973: Insects and Their World. Paperback . Univ of Chicago Pr. Insects and Their World. . British Museum (Natural History). September 1976: Insects in Your Garden (Puffin Books). Paperback. Puffin Books. date unknown: Ladybirds Book chapters by Oldroyd 1964 (O. Theodor and H. Oldroyd): Hippoboscidae. In Lindner, E. [Ed.]: Die Fliegen der paläarktischen Region - Stuttgart, 12: 1-70. 1973 (Oldroyd H, and Smith KGV): Diptera: Eggs and larvae of flies. In Smith KGV (ed.) Insects and other arthropods of medical importance. 1st ed. The trustees of the British Museum (Natural History) London, 1973; p. 289-323. 1975: Family Asilidae. In "A catalogue of the Diptera of the