Rhizobius Agassiz, 1846 (unjustified emendation; non Burmeister, 1835: preoccupied) Lindorus Casey, 1899 Rhizobiellus Oke, 1951 Rhyzobius is a genus in the lady beetle family (Coccinellidae).

The misspelling was first made in the original description in 1832; however, Stephens had used the name in 1829 already (as nomen nudum) and written it "Rhyzobius", so this spelling is used now.

Louis Agassiz in 1846 argued that Stephens intended to write "Rhizobius" all along and formally proposed to change the name thus, but this is considered unwarranted.

Rhyzobius lophanthae is used for biological pest control in Australia, namely scale insects (Coccoidea).

[2] 106 species are recognised in the most recent worldwide revision, including:[3] Data sources: i = ITIS,[4] c = Catalogue of Life,[5] g = GBIF,[6] b = Bugguide.net[7]