Pisum sativum I have also many times seen visited by Bombus.

You see, Mr. Bombus, I am pretty sure it is n't in the geography.

Betty said: My, Mr. Bombus, how warm you are!

Mr. Bombus considered a moment, And then asked, "Do you know where Now is?"

Apathus (= Psithyrus) lives in the nests of Bombus.