A generalist is a species that preys on a wide variety of, in this case, insects. The bat's main source of food consists of moths (Lepidoptera) and beetles (Coleoptera), but also includes crickets, mosquitoes, termites, and many other insects.
A generalist is an animal species that consumes a diverse array of insects, including moths, beetles, and other small invertebrates. The bat's main food source comprises Lepidoptera and Coleoptera, but it also eats crickets, mosquitoes, termites, and many others.