Gimenes (2003) observed a high frequency of Tetraglossula anthracina (Michener, 1989), Rhophitulus sp.
To date, 10 species specialised in the collection of Ludwigia pollen have been recorded, namely: Panurgillus flavitarsis Schilindwein and Moure, 1998 (Andrenidae), Diadasina distincta, Diadasina riparia (Ducke, 1913), Ptilothrix relata (Holmberg, 1903), Melissoptila paraguayensis (Brethes, 1909) (Apidae), Tetraglossula anthracina, Tetraglossula bigamica (Strand, 1910) (Colletidae) Pseudagapostemon brasiliensis Cure, 1989, Pseudagapostemon pruinosus Moure and Sakagami, 1984 (Halictidae) and Megachile brasiliensis (Megachilidae) (Schlindwein, 2004).