Agelastica

{{short description|Genus of beetles}}

{{Automatic taxobox

| image = Agelastica alni 1 brook beentree.jpg

| image_caption = Agelastica alni

| taxon = Agelastica

| display_parents = 2

| authority = Chevrolat, 1836

| type_species = Chrysomela alni

| type_species_authority = Linnaeus, 1758

}}

Agelastica is a genus of beetles in the family Chrysomelidae. It has two members, Agelastica alni{{cite web|title=Agelastica Dejean, 1836 - Natural History Museum|url=http://www.nhm.ac.uk/our-science/data/uk-species/species/agelastica.html|website=www.nhm.ac.uk|accessdate=30 March 2017|language=en}} and Agelastica coerulea.{{cite book|last=Beenen|first=R.|year=2010|chapter=Galerucinae Latreille, 1802|chapter-url=https://books.google.com/books?id=qt8zDwAAQBAJ&pg=PA455|pages=443–491|editor1-last=Löbl|editor1-first=I.|editor2-last=Smetana|editor2-first=A.|title=Catalogue of Palaearctic Coleoptera. Volume 6. Chrysomeloidea|publisher=Apollo Books|place=Stenstrup, Denmark|isbn=978-87-88757-84-2}}