Aleurotulus pteridophytae Martin (in Mound et al., 1994)

DISTRIBUTION. Colombia, Costa Rica, Ecuador, El Salvador, Venezuela.

HOST PLANTS. Lycopsida ­ Selaginellaceae: Selaginella eurynota . Filicopsida ­ Pteridaceae: Adiantum platyphyllum ­group; Schizaeaceae: Anemia phyllitidis; unidentified ferns intercepted at US quarantine stations.

COMMENTS. This is the only whitefly species known to colonise Selaginella . It is occasionally intercepted by US quarantine stations, on ferns from Central and northern South America.