Sitona is a large
genus of
weevils in the family
Curculionidae native to the
Nearctic and
Palaearctic regions. Over 100 species have been described.
Sitona is easily distinguished from related genera by flat, recumbent scales on the
mandibles, by the absence of an oval scar on the mandibles, by short and broad
rostrum with a deep, longitudinal, median groove, and by dense scales on the body.