What are the larvae of some moths and beetles commonly referred to as?

The larvae of some moths and beetles are commonly referred to as "borers." This term specifically describes the behavior of these larvae as they develop within or feed on woody plant tissues, often causing significant damage to the plant. For example, the larvae of certain beetles, such as the emerald ash borer, tunnel into the wood of trees, leading to structural weakness and ultimately the decline of the tree's health. Whereas, "grubs" typically refer to the larvae of various species of scarab beetles and are often found in soil, while "caterpillars" are specifically the larval stage of moths and butterflies. "Pupae" is the stage in the insect life cycle that occurs after the larval stage and before emerging as adults, so it does not apply to the question regarding larvae. Understanding these terms helps in identifying pest problems and managing them effectively in agricultural practices.