New north american records of the european broom psyllid Arytaina genistae (Latreille) (Sternorrhyncha : Psyllidae)

摘要

The European psyllid Arytaina genistae (Latreille) has been unintentionally introduced into North America, probably with imported nursery stock of its principal host, Scotch broom (Cytisus scoparius; Fabaceae). Known previously in North America only from an early twentieth-century collection from Massachusetts and a record of its interception in California in nursery stock originating in Washington State, A. genistae is reported from Nova Scotia, Canada, and from North Carolina, Oregon, and Washington in the United States. Morphological characters are provided that allow it to be separated from Arytainilla spartiophila (Forster), another European broom psyllid that also is established in eastern and western North America.