J. E.  Collin, ?On various new or little known british Diptera, including several species bred from the nests of birds and mammals?, Entomologist's Monthly Magazine, vol. 75, pp. 134-154, 1939.

V. V.  Dubinin, ?Ecological observations on the parasitic bloodsucking fly Carnus hemapterus in the Volga Delta?, Voprosy ékologií i biotsenologii, vol. 7 or 9, pp. 157-178 or 191-222, 1939.

A. D.  Hanna, ?Studies on the mediterranean fruit fly: Ceratitis capitata Wied. I. The structure and operation of the reproductive organs?, Bulletin de la Société Fouad 1er d'entomologie, vol. 22?, pp. 39-59?, 1939.

W.  Hennig, ?Beiträge zur Kenntnis des Kopulationsapparates und der Systematik der Acalyptraten. II. Tethinidae, Milichiidae, Anthomyzidae und Opomyzidae?, Arbeiten über morphologische und taxonomische Entomologie aus Berlin-Dahlem, vol. 6, pp. 81-94, 1939.

S. A.  Neave, Nomenclator zoologicus. A list of the names of genera and subgenera in zoology from the tenth edition of Linnaeus 1758 to the end of 1935. In four volumes, vol. I. A-C. London: Zoological Society of London, 1939, p. xiv + 957 pp.

E.  Séguy, ?Diptera (esc Culicidae)?, Missione Biologica nel paese dei Borana, vol. 3(Zool.)(2, pp. 123-148, 1939.

E.  Séguy, ?Insectes parasites des oiseaux vivants?, Les Oiseaux de France, vol. 4, pp. ?673-735, 1939.

R.  Struve, ?Ein Beitrag zur Dipterenfauna der Nordseeinsel Borkum?, Abhandlungen hrsg. vom Naturwissenschaftlichen Verein zu Bremen, vol. 31, pp. 567-571, 1939.