Cyrtolobus tuberosus is a species of treehopper belonging to the genus Cyrtolobus.

It was first described by Léon Fairmaire in 1846 as Thelia tuberosa.

[1] It is the largest treehopper in the Cyrtolobus genus, 9-10mm for females and 7-8mm for males[1] Cyrtolobus tuberosus is found across eastern and central United States.

[1][2] It feeds on many types of oaks (Quercus),[3] such as:

This Hemiptera article related to members of the insect suborder Auchenorrhyncha is a stub.