The present notes are a short account of work of a preliminary nature on the Coast of Kenya Colony, mostly between August 1920 and February 1921, at the end of a tour of service, and may serve to indicate some of the chief points calling for investigation. They are concerned with the life-history of the insect and with some field observations. The life-history work was carried out in tents shaded by a large mango tree, on land kindly lent by Sheik Ali bin Salim, on the north side of Mombasa Island. The field work was done on the island and on the neighbouring mainland. For records of the numbers of beetles captured on European plantations I am indebted to three gentlemen owning or managing them.