Oryctes baculovirus is a viral biocide exploited for the control of the insect pestOryctes rhinoceros. We have recently established a physical map of the genome of the Indian isolate ofOryctes baculovirus (OBV-KI). Here we examine the genomic relatedness between OBV-KI and OBV-PV505, the type isolate (originally from the Philippines), by DNA reassociation kinetics and by the use of restriction endonucleases. On the basis of differences in restriction-enzyme profiles between the two genomes, and previously reported differences in protein profiles and antigenic makeup, we propose the taxonomic status of a variant ofOryctes baculovirus for the Indian isolate