For 10 points, name these beings which are the subject of Gilbert and Sullivan's Iolanthe, as well as Wagner's first opera.
During the production of an opera about these beings, disputes arose over the inclusion of the aria "Oh love that rulest in our land," sung by Selene. That opera, based on the play The Wicked World, was composed by Edward German. In another opera, one of these beings is represented by a four-note Wagnerian motif which can first be heard in the first flute part starting in the fourth bar of the overture. In that opera, these beings sing the song "Tripping (*) hither, tripping thither." The premiere of an opera about these beings used special effects which took advantage of the fact that it was the first production to play at a theater lit entirely by electricity. The shepherd Strephon ends up leading Parliament in an opera in which one of these beings is banished for marrying a human. For 10 points, name these beings which are the subject of Gilbert and Sullivan's Iolanthe, as well as Wagner's first opera.
During the production of an opera about these beings, disputes arose over the inclusion of the aria "Oh love that rulest in our land," sung by Selene.
fairies