6 Acknowledgements.
We thank the editors and reviewers for their unequivocal contributions.
We thank The Office of the President of Botswana, National Museum of
Botswana (NMB) and De Beers Botswana Mining Company for the invitation
to collect the material. We acknowledge the staff of National Museum of
Gaborone (NMG). We also thank Dr S. Werner of the Ditsong National
Museum of Natural History for granting us access to their collection. We
also thank Dr S. P. Bester of South African National Biodiversity
Institute for granting us access to their state-of-the-art Olympus DSX
110 digital microscope. We acknowledge Mr J. Claase and Mr D. Noeth from
Wirsam Scientific and Precision Equipment (Pty) Ltd for granting us
access to their Olympus microscopes. SM would also like to thank his PhD
internal and external examiners.