Specialist natural enemy: A natural enemy with a very restricted diet. The most specialized natural enemies are those that attack only one species (for example, the crabronid wasp Larra analis is known to attack northern mole crickets only). Others may attack several species belonging to only one genus (for example, Ormia depleta is known to attack only two members of the genus Neoscapteriscus [tawny and southern mole crickets]). Specialist natural enemies may be useful in classical biological control.