Is a ladybird classed as a beetle?
A ladybird is a beetle, of the family Coccinellidae.
A ladybird in English is also known as a ladybug or ladybeetle, a small red spotted beetle best known from the child's rhyme "Ladybird, ladybird, fly away home." In Shakespeare's Romeo and Juliet it is used by the nurse as a term of endearment. It was used in a similar way in Jonson's Cynthia's Revels, written shortly after.
Scale insects and moisture are what both the metallic blue ladybug (Curinus coeruleus) and the Mulsant ladybird beetle (Thalassa montezumae) respectively feed upon and drink. Specifically, the metallic blue ladybug is native to the Caribbean whereas the Mulsant ladybird beetle is native to Mexico. Additionally, the metallic blue ladybug will eat aphids and Asian citrus psyllids.