Article: Grzimek's Animal Life Encyclopedia. Vol. 2 Insects by Grzimek, Franz Bachmaier, Wolfgang Dierl, Eberhard Ernst, Bernhard Grzimek, Hubert Markl, Werner Rathmayer, Peter Rietschel, Friedrich Schaller, Richard zur Strassen, Heinz Wundt, Fritz Zumpt, Erich Klinghammer, M. A. Biederman-Thorson