Sicily (Italy) is an important hotspot diversity for bees and new species records are constantly reported for the island. Here, we rediscovered after 45 years without records, the occurrence in Eastern Sicily of Lasioglossum marginatum (Brullé 1832) confirmed by DNA barcoding. This is the only known species of eusocial sweat bees (Halictidae) with perennial colonies. Since a single female was collected in our large 2-years bee sampling, combined with its absence in previous collections, this species is suggested to be rare in Sicily.

中文翻译：

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通过 DNA 条形码在西西里岛重新发现社会性汗蜂 Lasioglossum marginatum（膜翅目：Halictidae）

西西里岛（意大利）是蜜蜂多样性的重要热点，岛上不断有新的物种记录报道。在这里，我们在 45 年没有记录后重新发现了通过 DNA 条形码证实的Lasioglossum marginatum (Brullé 1832)在西西里岛东部的出现。这是唯一已知的具有多年生蜂群的社会性汗蜂 (Halictidae) 物种。由于在我们为期 2 年的大型蜜蜂采样中采集了一只雌性，再加上之前的采集中没有，因此该物种在西西里岛被认为是罕见的。