First record of the pill bug <i>Armadillidium arcangelii</i> Strouhal, 1929 (Crustacea: Isopoda) in Slovenia

Numerous novel occurrences of Armadillidium arcangelii, a terrestrial isopod native to Italy, have been reported in recent years in synanthropic habitats across much of Europe. These records indicate that the species is rapidly spreading, likely via the transport of plants. On 21. 9. 2023, a male of this species was collected on turf near Seča on the Slovenian coast. This is the first record of A. arcangelii in Slovenia. The record is all the more relevant as A. arcangelii is a potential agricultural pest.