First record of the expansive harvestmen Leiobunum sp. A (Arachnida: Opiliones) in Poland

Abstract

The invasive harvestmen Leiobunum sp. A (Arachnida: Opiliones) spread rapidly across Europe. Since the first report from the Netherlands at the beginning of the 21st century its known range covers most of the western and central European countries, reaching Berlin in the East. In this note we report for the first time two new sites from Poland which move its range 230 and 300 km eastward, respectively. It was found in Chocz near Pleszew and Dąbrówka near Poznań (Wielkopolska Lowland). Chocz is now easternmost site of this species in Europe. Morphological measurements and drawings are given. Female genitalia are described for the first time.