(1) Zoologisches Institut der Universität Freiburg i. Br., 78 Freiburg i. Br., 20 Katharinestr.
Abstract:
Imaginal disks and the gonads of Ch. thummi have been used to obtain clear criteria for the determination of the developmental stage of 4th instar larvae. The imaginal anlagen are growing continuously and the established developmental phases are representing equal intervals of time.Mit Unterstiitzung der Deutschen Forschungsgemeinschaft.Die Arbeit wurde Herrn Prof. Dr. W. Kuhl zum 75. Geburtstag gewidmet.