Megastigmus pistaciaePronunciation/MEH-gas-TIG-mus pIS-ta-chae-ee/CategoryTaxonomySingularMegastigmus pistaciaePluralMegastigmus pistaciaeDefinitionA species of wasp belonging to the family Torymidae, known as the pistachio seed chalcid.EtymologyNamed after the pistachio tree (Pistacia spp.) which it parasitizes.ExampleMegastigmus pistaciae is a key pest of pistachio crops worldwide.Related TermsPistachioParasiteTorymidae