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We report the presence of two Asian species of larval parasitoids of spotted wing   Drosophila  ,    Drosophila   suzukii    (Matsumura) (  Diptera  :   Drosophilidae  ), in northwestern North America.    Leptopilina   japonica    Novkovic &amp; Kimura and    Ganaspis   brasiliensis    (Ihering) (  Hymenoptera  :   Figitidae  ) were found foraging near and emerging from fruits infested by    D.   suzukii    at several locations across coastal British Columbia, Canada in the summer and fall of 2019. While    G.   brasiliensis    was found in British Columbia for the first time in 2019, re-inspection of previously collected specimens suggests that    L.   japonica    has been present since at least 2016. Additionally, we found a species of    Asobara    associated with    D.   suzukii    in British Columbia that is possibly    Asobara   rufescens    (Förster) (known only from the Palearctic Region) based on  COI  DNA barcode data. These findings add to the list of cases documenting adventive establishment of candidate classical biological control agents outside of their native ranges. The findings also illustrate the need for revisiting species concepts within    Asobara   , as well as host and geographic distribution data due to cryptic and/or misidentified species.

journal of hymenoptera research

New records of    Leptopilina   ,    Ganaspis   , and    Asobara    species associated with    Drosophila   suzukii    in North America, including detections of    L.   japonica    and    G.   brasiliensis