Updated distribution of the invasive (Hymenoptera: Megachilidae) in Italy and its first record on a Mediterranean island.

(Smith, 1853) (Hymenoptera: Megachilidae) is an invasive solitary bee that is rapidly spreading all over Europe. The present study aims to update the distribution of this species in Italy. The research led to the collection of 177 records, obtained through bibliographic research and data-mining from websites, blogs and social networks. We here present the first record of on a Mediterranean island and discuss its possible effect on the native ecosystem. Given the particular discovery of on Elba Island (Tuscany), we suggest possible monitoring, containment and possible eradication measures of the species.