S. Gurmit(United Plantation Research Department, United Plantation Berhad)
K. Norman(Biological Research Division, Malaysian Palm Oil Board)
A. S. Sajap(Department of Forest Management, Faculty of Forestry, University Putra Malaysia)
A. B. Idris(Centre for Insect Systematics, School of Environmental & Natural Resource Sciences, Faculty of Science & Technology, National University of Malaysia)
R. Faszly(Centre for Insect Systematics, School of Environmental & Natural Resource Sciences, Faculty of Science & Technology, National University of Malaysia)
