Lepidopterist
A lepidopterist or aurelian is a person who specialises in the study of Lepidoptera, members of an order encompassing moths and the three superfamilies of butterflies, skipper butterflies, and moth-butterflies. The term also includes hobbyists who are not formal scholars, who catch, collect, study, or simply observe lepidopterans. The field is formally known as Lepidopterology.
Fictional lepidopterists
Hverven, in the film The Happy House (2013)
Stapleton, in Arthur Conan Doyle's Sherlock Holmes novel The Hound of the Baskervilles.
The father, Ben, in the TV series Butterflies
The character Red Jack, who claimed to be both Jack the Ripper and God, in the comic book Doom Patrol
The character Judge Holden in Cormac McCarthy's novel Blood Meridian.
Stein in the novel Lord Jim
Ada in Vladimir Nabokov's Ada has dreams as a young girl of being a lepidopterist on the fictional planet 'anti-terra'. (Nabokov himself was an accomplished lepidopterist.)
The character Frederick Clegg in the novel The Collector (1962) by John Fowles, also made into a film (1965) directed by William Wyler.