Of or relating to lepidopterology.
The scientific study of butterflies and moths (the Lepidoptera).
lepidoptery the hobby of butterfly collecting
Lepidopterology (from Ancient Greek λεπίδος (lepídos) 'scale', πτερόν (pterón) 'wing', and -λογία (-logia)) is a branch of entomology concerning the scientific study of moths and the three superfamilies of butterflies. Someone who studies in this field is a lepidopterist or, archaically, an aurelian.