1. Authors received rough guidelines from the editors, together with the corresponding LATEX style. This formatter was recommended, but not mandatory. The main reason for using such a style was to allow authors: (a) to know if their text was too long, and; (b) to prepare figures which would fit into the physical frame of the page. 2. Following these guidelines, authors prepared their papers usi...

Three new species of the Cape high-mountain stag beetle genus, Colophon Gray (Coleoptera: Lucanidae), from South Africa are described. They are C. deschodti new species, C. switalae new species, and C. struempheri new species. The new taxa fall within a species complex of geographically disjunct entities related to Colophon stokoei Barnard. Furthermore, the mitochondrial COI gene shows a high d...

Colophon Quality assessment of satellite-based global gravity field models Contents Summary iii Samenvatting iv Acknowledgements v Abbreviations vi 1 Introduction 1