Good Heavens what insect can suck it'– Charles Darwin, Angraecum sesquipedale and Xanthopan morganii praedicta - ARDITTI - 2012 - Botanical Journal of the Linnean Society - Wiley Online Library
With a Nearly Foot-Long Proboscis, This New Moth Species Holds Record for Longest Insect Tongue | Smart News| Smithsonian Magazine
Good Heavens what insect can suck it'– Charles Darwin, Angraecum sesquipedale and Xanthopan morganii praedicta - ARDITTI - 2012 - Botanical Journal of the Linnean Society - Wiley Online Library
Angraecum sesquipedale with Xanthopan morganii praedicta - Frances Livingstone