Fidia longipes is a species of leaf beetle that is found in North America. It occurs mostly east of the Appalachian Mountains. It is associated with plants such as Ilex opaca (Aquifoliaceae), soybeans (Fabaceae), Salix (Salicaceae), and various Vitaceae including Ampelopsis arborea, Parthenocissus quinquefolia, and various species in the genus Vitis.