Comma butterfly and Four-footed butterfly

Comma butterfly noun - Anglewing butterfly with a comma-shaped mark on the underside of each hind wing.

Four-footed butterfly and comma butterfly are semantically related. In some cases you can use "Four-footed butterfly" instead a noun phrase "Comma butterfly".

Four-footed butterfly noun - Medium to large butterflies found worldwide typically having brightly colored wings and much-reduced nonfunctional forelegs carried folded on the breast.

Comma butterfly and four-footed butterfly are semantically related. Sometimes you can replace phrase "Comma butterfly" with "Four-footed butterfly", this phrases are similar.