The invasive species Phytomyza gymnostoma (Loew) (Diptera: Agromyzidae), also know as the Allium Leafminer, is reported from the United States for the first time. The first specimens were collected in Lancaster County, PA, USA in December 2015. An additional 19 counties in Pennsylvania and two states were confirmed in 2016. The species’ North American distribution, pest implications, and observations on their biology in the New World are reviewed.

中文翻译：

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Allium Leafminer 的第一个北美唱片

美国首次报道了入侵物种 Phytomyza gemnostoma (Loew) (Diptera: Agromyzidae)，也被称为 Allium Leafminer。第一批标本于 2015 年 12 月在美国宾夕法尼亚州兰开斯特县收集。2016 年确认了宾夕法尼亚州和两个州的另外 19 个县。该物种在北美的分布、害虫影响以及对它们在新世界的生物学观察是审查。