The infestation by an exotic ambrosia beetle, Euplatypus parallelus (F.) (Coleoptera: Curculionidae: Platypodinae) of Angsana trees (Pterocarpus indicus Willd.) in southern Thailand

An exotic ambrosia beetle, Euplatypus parallelus (F.) was collected from infested Pterocarpus indicus Willd. trees in Prince of Songkla University. Larvae and eggs were found in simple galleries with a single branch. Either a single male or a male and a female were found in each gallery. Half of these infested trees were previously attacked by long-horned beetles probably Aristobia horridula (Hope) (Coleoptera: Cerambycidae), while some of them appeared to be healthy. Fusarium oxysporum Schlecht.:Fr. was isolated from frass, sapwood samples and insect larvae, and might be a cause of death of P. indicus.