Lucilia (wife of Lucretius), the wife of Roman philosopher Lucretius
Lucilia (fly), a greenbottle fly genus in the family Calliphoridae
Lucilia (plant), a plant genus in the family Asteraceae
and also:
Napaea lucilia, a butterfly species in the genus Napaea (Mesosemiini, Riodinidae)
Sabatinca lucilia, a moth species
