Eruptive-population
Guides
Disonycha
Disonycha is a genus of flea beetles (Chrysomelidae: Galerucinae: Alticini) containing approximately 170 species distributed in the Nearctic and Neotropical regions. Species in this genus are herbivorous, with many showing strong host plant specializations including passion vines (Passiflora), willows (Salix), and legumes. Some species exhibit eruptive population dynamics and at least two passion vine specialists have been documented practicing egg cannibalism (conspecific oophagy) by adults—a behavior first reported for the subfamily Galerucinae.