Dr. Steinmann Henrik szerk.: Folia Entomologica Hungarica 23/1-12. (Budapest, 1970)

anatomy were based on external morphological aspects and are still used as such. Its main mistakes are: a disregard of the phylogenetical segmentation (the ancient limits of the several areas), on organogenetic untraceabless (the internal location of the organs do not coincide with the external morphological regions), a multiple overlap of the organs with one another (causing functional confusions in the assessment of their mechanisms). With due regard to all these points, a new regional subdividing became an indispensable must, one which solves and eliminates all these sources of error and points out a road easy to follow (and with precision!) in comparative anatomical investigations

. By a careful judging of the apparent possibilities presenting themselves as solutions of the requirements outlined above, the real solution became manifest after the delineation of the summarized insect anatomical scheme: the summing up of the common and general appeared in itself as a kind of natural sequence. The spontaneously differentiable regions were exposed to the sifting process of the above requirements and the excluding factors, and they were found to coincide completely with the sequence of the phylogenetical evolution of the central nervous system, namely with the unity of the primordial segmental borders and the autonomously functioning organs. Accordingly, 2 topographical groups and within them 7 regions can be distinguished: a/ cerebral regions: regio verticalis (protocerebral region) regio antennalis (deuterocerebral region) regio labralis (tritocerebral region); b/ suboesophageal ganglion and its regions: regio mandibularis regio maxillaris regio labialis regio cervicalis.