Van-duzee-1891
Guides
Cedusa californica
Cedusa californica is a species of planthopper in the family Derbidae, first described by Van Duzee in 1891. It belongs to the tribe Cedusini within the subfamily Breddiniolinae. The species is distributed across western and central North America, with records from California, Arizona, Colorado, Idaho, and Michigan. Like other derbid planthoppers, it likely feeds on plant sap and may be associated with specific host plants, though detailed biological studies remain limited.
Nionia palmeri
Nionia palmeri is a species of leafhopper in the family Cicadellidae, subfamily Nioniinae. It was first described by Van Duzee in 1891 under the basionym Goniagnathus palmeri. The species is recorded from scattered localities across the eastern and central United States. As a member of the Nioniinae, it belongs to a relatively small and specialized group within the leafhopper family.