Monotypic Polyphaga genera

Falsotmesisternus zygoceroides is a species of beetle in the family Cerambycidae, and the only species in the genus Falsotmesisternus. It was described by Stephan von Breuning in 1961.

Chiasmetes is a genus of beetles in the family Cerambycidae. It is monotypic, being represented by the single species, Chiasmetes limae.

thumb|Elm bark beetle trap on an elm tree

Cotychroma acaguassu is a species of beetle in the family Cerambycidae, the only species in the genus Cotychroma.

Coroicoia ligata is a species of beetle in the family Cerambycidae, and the only species in the genus Coroicoia. The species was described by Schwarzer in 1930.