Notes on Cerataphis brasiliensis and synonyms palmae, variabilis and fransseni (Homoptera: Aphididae), with a key to Cerataphis species living on palms and orchids.
Cerataphis brasiliensis is established as a valid species. This specific name pre-dates C. palmae, C. variabilis and C. fransseni which are considered synonyms of C. brasiliensis. The availability of topotypes of C. brasiliensis and syntypes of C. palmae is disclosed, lectotypes and paralectotypes of C. palmae and C. variabilis are designated, and the life cycle of C. fransseni is noted. A key is provided for the identification of species of Cerataphis living on palms and orchids.