This paper reports the distribution, nature and impact of damage, life history, number of generations in a year, host records and biocontrol agents of the beehole borer, Zenzera conferta Walker (Cossidae : Lepidoptera) infesting keora (Sonneratia apetala Buch.-Ham.) plantations along the coastal belt of Bangladesh. The pest profusely tunnels in the stem rendering the tree to wind breakage. It probably completes two generations in a year. Besides keora, the pest attacks Sonneratia caseolaris, Avicennia officinalis, A. alba and Tamanx indica. Woodpeckers (Dinopium benghalense and Picoides canicapilltis) and a small black ant were found to feed on the larvae and pupae of the pest.