Microgastrines have been reared from most of the major families of Lepidoptera. There are tens of thousands of host records already available in India. This section presents a list of host species under selected families of Lepidoptera reported in the caterpillar rearing of the National Insect Museum of ICAR- National Bureau of Agricultural Insect Resources (NBAIR). This section is most likely to expand based on new discoveries as and when encountered.