The Collaborative International Dictionary of English v.0.48:

Aurelian \Au*re"li*an\, a.
   Of or pertaining to the aurelia.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Aurelian \Au*re"li*an\, n.
   An amateur collector and breeder of insects, esp. of
   butterflies and moths; a lepidopterist.
   [1913 Webster] Aureola