Edmund Dulac's illustrations from: Arabian Nights, Beauty and the Beast, Dreamer of Dreams, Daughters of the Stars, Edmund Dulac's Picture Book for the Red Cross, Fairies I have Met, Fairy Tales of Hans Christian Andersen, Gods and Mortals in Love, Kingdom of the Pearl, Le Papillon Rouge, The Little Mermaid, The Raven and Other Poems, The Rubaiyat, Stealers of Light, The Snow Queen, and The Tempest. In addition to book illustrations, Dulac also illustrated magazines, and designed stamps and banknotes.
The Entomologist's Dream is an illustration for the
story, Le Papillon Rouge (The Red Butterfly) by Gerard D'Houville.
The story was published in the Christmas 1909 edition of
L'Illustration, the French news and art magazine. In the story,
the entomologist is driven mad by his failure to find a blood red
butterfly for the lady whose attentions he seeks. One night, after
many years of searching, he ransacks his entire butterfly
collection. As he frees the insects from their cases, they
magically wake and fly off into the night. The entomologist is
heartbroken, and is discovered dead in the morning.