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 & 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.

中文翻译：

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北美与铃木果蝇相关的钩端螺旋体，加纳皮斯和阿索巴拉物种的新记录，包括发现日本粳稻和巴西巴西栗。

我们报告了在北美西北部发现的有翼果蝇，果蝇铃木（松村）（双翅目：果蝇）的两个亚洲物种的幼虫寄生虫的存在。在2019年的夏季和秋季，在加拿大不列颠哥伦比亚省沿海的多个地点发现了日本鳞翅目夜蛾和木村和巴西茄属（鸢尾属）（膜翅目：Figitidae）觅食，并从铃木D.suzukii侵染的果实中觅食。早在2016年首次在不列颠哥伦比亚省发现了该菌，对先前收集的标本进行的重新检查表明，至少从2016年以来就存在日本粳稻。此外，我们在不列颠哥伦比亚省发现了一种与铃木D.suzukii相关的物种可能是基于COI DNA条码数据的Asobara rufescens（Förster）（仅在古北地区已知）。这些发现增加了一系列案例，这些案例记录了候选经典生物防治剂在其天然范围之外的确定性建立。研究结果还表明，需要重新审查Asobara内的物种概念，以及由于隐性和/或错误识别的物种而导致的宿主和地理分布数据。