Polydesmus angustus Latzel 1884

VI.2018; UAH • 9♂, 6♀; same data; 22. VI.2019; UAH • 121 ♂, 20 ♀; same data; 1.IX.2021; UAH. REMARKS The species has a wide distribution in western Europe, namely in Germany, Switzerland, the United Kingdom and France, including the northern part of the Pyrenees, and several other countries (Kime & Enghoff 2011).

This species was reported in Spain for the first time by Mauriès (1971), in the province of Lerida, in the Catalonian Pyrenees, and according to Kime & Enghoff (2011) the species had not been recorded in the Atlantic zone of Spain. Djusrvoll (2019) states that this species occurs in the Atlantic zone, in the provinces of Alava and Asturias, but he provides no capture information or bibliographic references. The present record from Pesaguero confirms the occurence of the species in the Atlantic region of Spain.

However, it is not clear whether this region was part of its native distribution range, whether it has been recently colonized due to natural dispersal of the species (Hauser & Voigtländer 2009) or whether it is the result of anthropogenic introduction events (it has been introduced in North America, see for example Shelley (2002) or Kime & Enghoff (2011)). Interestingly, Polydesmus angustus was found in syntopy with P.coriaceus, the most common polydesmid in the present study. | Published as part of Gilgado, José D. & Ortuño, Vicente M., 2023, Polydesmid millipedes in the MSS of the northern Iberian Peninsula (Diplopoda, Polydesmida, Polydesmidae), pp. 451-461 in Zoosystema 45 (15) on page 456, DOI: 10.5252/zoosystema2023v45a15, zenodo.org/record/8406495