The bulb mite (Rhizoglyphus robini) is a common pest of numerous crops. Male bulb mites display one of two reproductive tactics and are classified as “fighters” and “scramblers.” Biologists from the University of Amsterdam (UvA) have now discovered a third variant, the “mega-scrambler,” in which males are morphologically similar to females. Their results were published on 17 May in the scientific journal Ecology.