M. L.  Aczél, ?Das system der familie Dorylaidae. Dorylaiden-Studien I?, Zoologischer Anzeiger, vol. 125, pp. 15-23, 1939.

M. L.  Aczél, ?Die untergattung Dorylomorpha m. von Tomosvaryella m. Dorylaiden-Studien II?, Zoologischer Anzeiger, vol. 125, pp. 49-69, 1939.

M. L.  Aczél, ?Beckerias pannonicus, eine neue gattung und art der Dorylaiden (Dipt.). Dorylaiden-Studien IV?, Zoologischer Anzeiger, vol. 126, pp. 191-195, 1939.

F. M.  Carpenter and Hull, F. M., ?The fossil Pipunculidae?, in Bernstein-Forschungen, vol. 4, P. K.  Andrée, Ed. Berlin: Walter de Gruyter & Co., 1939, pp. 8-17.

T.  Esaki and Sameshima, T., ?Report on the Leaf-hoppers injurious to the Rice Plant and their Natural Enemies, No. 10 (for the Year 1938)?, Ent. Lab. Dept. Agr. Kyushu Imp. Univ. Pub., vol. 10, pp. 45-47, 1939.

P. A.  Glick, ?The distribution of insects, spiders and mites in the air?, United States Department of Agriculture. Technical Bulletin No. 673, vol. 673, pp. 1-151, 1939.

E.  D. Hardy, ?New Nearctic Pipunculidae (Diptera)?, Journal of the Kansas Entomological Society, vol. 12, pp. 16-25, 1939.

D. E.  Hardy and Knowlton, G. F., ?New and little known Western Pipunculidae (Diptera)?, Annals of the Entomological Society of America, vol. 32, pp. 113-124, 1939.

D. E.  Hardy and Knowlton, G. F., ?New and little known Utah Pipunculidae (Diptera)?, The Canadian Entomologist, vol. 71, pp. 87-91, 1939.

H.  Lindberg, ?Der parasitismus der auf Chloriona-Arten (Homoptera Cicadina) lebenden Strepsiptere Elenchinus chlorionae n. sp. sowie die Einwirkung derselben auf ihren Wirt?, Acta Zoologica Fennica, vol. 22, pp. 1-179, 1939.