Ants are continually introduced into regions outside of their natural biogeographic ranges via global trade. The genus Strumigenys Smith 1860 (Formicidae: Myrmicinae) are minute predators with a growing history of global introductions, although tropical introductions into temperate zones are rarely able to establish outside of heated infrastructures. We report the first record of the Australasian Strumigenys perplexa (Smith 1876) to Europe and the British Isles from four sites on Guernsey, Channel Islands. This novel discovery is likely attributable to the species wide climatic and habitat tolerances, enabling the species to establish away from its natural range in Australasia and from heated-infrastructure. A key to the West Palaearctic Strumigenys species is provided alongside a preliminary and critical checklist of ant species recorded from the Channel Island archipelago, listing 32 species.

中文翻译：

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Strumigenys perplexa (Smith, 1876) (Formicidae, Myrmicinae) 一种新的欧洲外来蚂蚁，在海峡群岛的根西岛建立

通过全球贸易，蚂蚁不断被引入其自然生物地理范围之外的地区。Strumigenys Smith 1860 属（蚁科：Myrmicinae）是微小的捕食者，其全球引入的历史不断增长，尽管热带引入温带地区很少能够在加热基础设施之外建立。我们从海峡群岛根西岛的四个地点向欧洲和不列颠群岛报告了澳大利亚 Strumigenys perplexa (Smith 1876) 的第一个记录。这一新发现可能归因于该物种广泛的气候和栖息地耐受性，使该物种能够远离其在澳大拉西亚的自然范围和加热基础设施。