Salvia-specialist
Guides
Phrydiuchus tau
Mediterranean sage root weevil
Phrydiuchus tau is a small weevil in the family Curculionidae, commonly known as the Mediterranean sage root weevil. It is native to southern Eurasia and has been introduced to the western United States as a biological control agent targeting the invasive weed Mediterranean sage (Salvia aethiopis). The species derives its scientific name from the distinctive white T-shaped marking on its dorsal surface, resembling the Greek letter tau.