The Phylogeny of the Hymenopteran Brain
- (From the Zoological Institute of the University of Freiburg i./Br. Germany)
- Corresponding author: jrybak{at}ice.mpg.de
This extract was created in the absence of an abstract.
For this, refer to 29 Figures in the text and 31 Figures on plates 18–21.
Translation of the original publication by
Jürgen Rybak and Randolf Menzel
Content. Introduction. Historical overview. Materials and methods. The physiology of mushroom body. The development of mushroom body. Specific part. A. Tenthredinidae. B. Cynipidae. C. Uroceridae. D. Ichneumonidae. E. Fossorians and Apidae. a) Fossorians and Archiapidae. b) Gastrilegidae and Podilegidae. c) Social Apidae. d) Parasitic Bees. F. Vespidae. General part. Summary and theoretical implication of the research results.
Introduction
In some species of social Hymenoptera, a biologically fascinating fact has emerged that there is a sexual dimorphism in the structure of the central nervous system, apparently causally related to the different development of instincts.
After (Dujardin, 1850) first noticed a striking reduction in “substance corticale” in ant workers and emphasized the need to comparatively examine the brains of different sexes anatomically (Brandt, …
