A blue butterfly, from 1847, France. Original image: thegraphicsfairy.com/vintage-natural-history-printable-beautiful-blue-butterfly/<br/>藍蝴蝶<br/>animals、blue、bug、butterfly、fauna、Favorites、fl、flying、General、insect、Things to Render、wings<br/>動物、藍色、竊聽器、蝴蝶、動物區系、最愛、在、飛行、一般、昆蟲、要渲染的東西、翅膀<br/>資料來源：openclipart ( https://openclipart.org/ )