title: Insects as selective agents on plant vegetative morphology: egg mimicry reduces egg laying by butterflies.
abstract: Experiments show that Heliconius butterflies are less likely to oviposit on host plants that possess eggs or egglike plant structures. These egg mimics are an unambiguous example of a plant trait evolved in response to a host-restricted group of insect herbivores.
authors.forename: K S
authors.initials: KS
authors.lastname: Williams
authors.forename: L E
authors.initials: LE
authors.lastname: Gilbert