1800's, Ralph Waldo Emerson, The Humblebee.
Burly, dozing humblebee,
Where thou art is clime for me.
1859, Charles Darwin, On the Origin of Species.
Hence I have very little doubt, that if the whole genus of humble-bees became extinct or very rare in England, the heartsease and red clover would become very rare, or wholly disappear.
Origin of humblebee
Middle English humbulbe possibly Middle Dutch hummel Middle English be, bee bee bee1