{{Short description|Species of beetle}} {{Speciesbox | image = | image_caption = | image2 = | image2_caption = | genus= Alurnus | species = undatus | authority = Brême, 1844 | synonyms = }} '''''Alurnus undatus''''' is a species of beetle of the family Chrysomelidae. It is found in Colombia and Panama.<ref>{{cite web |last= Staines|first= C.L.|date= 2012|title= Hispines of the World.|url= https://idtools.org/beetles/hispines/|website= |location= |publisher= USDA/APHIS/PPQ Science and Technology and National Natural History Museum.|access-date= August 26, 2025}}</ref>

==Description== Adults reach a length of about 17–25 mm. Adults have a black head, pronotum and legs, while the elytron is yellow with three black transverse bands.<ref>{{cite journal |last1= Staines|first1= C.L.|last2= |first2= |date= 2013|title= A review of the genus Alurnus Fabricius, 1775 (Coleoptera: Chrysomelidae: Cassidinae).|url= https://journals.flvc.org/mundi/article/view/0291/78783|journal= Insecta Mundi|volume= 0291|issue= |publisher= Center for Systematic Entomology, Inc.|pages= 1–34|doi= |access-date= August 26, 2025}}</ref>

== References == {{reflist}}

{{Taxonbar|from=Q2353330}}

Category:Beetles described in 1844 Category:Alurnus Category:Taxa named by Ferdinando Arborio Gattinara di Breme Category:Beetles of Colombia Category:Beetles of Panama {{Cassidinae-stub}}