1. Department of Zoology and Entomology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria 0002, South Africa
2. Department of Conservation Ecology and Entomology, Department of AgriSciences, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
3. Laboratory for Electron Microscopy, North-West University, Potchefstroom Campus, Private Bag X6001, Potchefstroom 2520, South Africa
4. Department of Genetics, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria 0002, South Africa