Five species of whiteflies (Aleyrodidae) were found on citrus in southern Texas: Aleurocanthus woglumi Ashby, Aleurothrixus floccosus (Maskell), Paraleyrodes citri Bondar, Dialeurodes citri (Ashmead), and D. citrifolii (Morgan). Parasite records for this area were Amitus hesperidum Silvestri (Platygastridae) and Prospaltella opulenta Silvestri (both Encyrtidae) attacking A. woglumi; Eretmocerus sp. near paulistus Hem. (Encyrtidae), Amitus sp., and Prospaltella sp. attacking A. floccosus; and Prospaltella sp. attacking P. citri. Predators recorded were Delphastus pusillus (Le Conte) (Coccinellidae) feeding on A. floccosus; D. pusillus and Nephaspis amnicola Wingo (Coccinellidae) feeding on P. citri. A pathogenic fungus, Aschersonia aleyrodis Webber, was found attacking D. citri.