Dr. Papp Jenő szerk.: Folia Entomologica Hungarica 25/8-35. (Budapest, 1972)

FOLIA ENTOMOLOGICA HUNGARICA ROVARTANI KÖZLEMÉNYEK (SERIES NOVA) TOM. XXV. 1972. Nr. 32. A Comparative Anatomy of the Inseet Head. IV. Muselés and Nerves of the Sympathical System* By Dr. H. Steinmami Hungarian Natural History .Museum. Budapest Almost insurmountable difficulties arose during the typization of the sympathetic nervous system of the head,which were mainly due to the distribution of the homologization of individual parts. Different authors follow different paths, consequently, to elucidate in various typical animals the individual parts in comparison, in spite of the precise and authentic description, one has to resort to simplifications. Thus, I had to typify the cephalic sympathetic parts, too, to be abble to construct the already known model of the "sympathetic part" of the central nervous system. Though I was able to give one concise model for the latter, one model comprised all the typical, I could not do the same for the sympathetic but elaborated this system into a number of principal types to realize the general and the similar within a "model" conceived in a wider sense. This partial solution, however, proved to be workable by the fact that the principal types corresponded to the systematic categories of superorders elaborated by MARTYNOV. Out of the muscles of the foregut region sixteen may be called typical; of which dorsally six help to suspend the foregut Parts I-III.have been published in this journal in the following volumes and pages: 23: 113-124, 23: 163-170, 24: 211-218. Foi. Ent. llunfr. XXV. 1972. 481