Breeding biology of oil palm weevil, Temnoschoita quadrimaculata Gly., was studied. Females lay small, whitish and cylindrical eggs singly in cut wounds made on the fronds and trunk of oil palm, Elaeis guineensis Jacq. The larvae were found to feed voraciously in the fresh and dead tissues of the palm fronds and trunk. The weevil has six overlapping generations. Unmated females were observed to have longer pre-oviposition period, laid fewer eggs and lived longer than the mated ones. Durations of the immature stages of the weevil are studied. Natural enemies and alternate host plants of the pest are given.