bean beetle vs ladybird beetle

bean beetle and ladybird beetle both are nouns.

Word	Noun	Adjective	Verb	Adverb
bean beetle	Yes	No	No	No
ladybird beetle	Yes	No	No	No

As nouns, ladybird beetle is a hypernym of bean beetle; that is, ladybird beetle is a word with a broader meaning than bean beetle:

bean beetle: introduced into the United States from Mexico; feeds on the foliage of the bean plant
ladybird beetle: small round bright-colored and spotted beetle that usually feeds on aphids and other insect pests

Other hypernyms of bean beetle include lady beetle, ladybeetle, ladybird, ladybug.

bean beetle (noun)	ladybird beetle (noun)
introduced into the United States from Mexico; feeds on the foliage of the bean plant	small round bright-colored and spotted beetle that usually feeds on aphids and other insect pests