Arachnologische Mitteilungen 55

Arachnologische Mitteilungen / Arachnology Letters 55: 75-78 Karlsruhe, April 2018 Reporting the newly revealed presence of a species in a given country is one of the first steps towards overcoming the “Wal- lacean Shortfall” (Lomolino 2004) and represents important information for local biodiversity conservationists and nature conservation authorities. However, the distribution of many European spider species is still insufficiently known, espe- cially in parts of Eastern and Southern Europe. While the biodiversity of Poland may be the highest in Central Europe (Convention on Biological Diversity 2017), currently only about 845 spider species are listed for the country (Nentwig et al. 2017). However, new country records of widespread Eu- ropean species are frequently published (e.g. Kronestedt 2006, Hajdamowicz 2009, Hajdamowicz et al. 2014, Rozwałka & Stachowicz 2015, Wiśniewski & Wesołowska 2015, Rozwałka et al. 2016, Wiśniewski & Dawidowicz 2017), in- dicating a large knowledge gap concerning the distribution of sometimes even relatively widespread species. Over 300 spider species currently known from Poland are Linyphii- dae, which is comparable to the number in adjacent coun- tries like Germany, the Czech Republic or Ukraine (Nentwig et al. 2017). Prinerigone vagans (Audouin, 1826), a linyphiid repeatedly found in Germany (Arachnologische Gesellschaft 2017) and distributed in the area of Berlin (Kielhorn 2010, 2016), was never collected in Poland before. Material and methods The specimen was collected by hand and preserved in 75% ethanol. Photographs were made with a NikonD300 attached to a Novex RZ stereomicroscope.The map was created using the mapping system of the Arachnologische Gesellschaft (Arachnologische Gesellschaft 2017) and the records pre- sented on the recording scheme of the Czech Arachnological Society and the cited literature (Czech Arachnological Socie- ty 2017).The drawing was made by TB, the material is depo- sited at the private collection of JG. Results Prinerigone vagans (Audouin, 1826) (Figs 1–3) Material. POLAND, Silesia, The Silesian Beskids mountain range, Istebna, bank of the river Olza, 49.57397° N, 18.90317° E (WGS 84), 1 ) , 552 m a.s.l., collected by hand, 16.viii.2015, leg. Luis Guttenberger. Prinerigone vagans new to Poland (Araneae: Linyphiidae), with comments on taxonomy and distribution Jürgen Guttenberger, Luis Guttenberger & Tobias Bauer doi: 10.30963/aramit5513 Abstract. The first record of the hygrophilous linyphiid spider Prinerigone vagans (Audouin, 1826) for Poland, collected on a bank of the River Olza near the Czech Border, is presented together with a discussion of known habitats of the species. A review of the taxonomic literature revealed that some characters of the male palp are highly variable within the distribution and even single populations of P. vagans. Future investigations should clarify the status of populations in Europe, the Near andMiddle East as well as North Africa including Macaronesia. Keywords: Erigoninae, new record, pedipalpus, spider Zusammenfassung. Prinerigone vagans neu für Polen (Araneae: Linyphiidae), mit Kommentaren zur Taxonomie und Verbrei- tung. Der Erstnachweis der hygrophilen Linyphiide Prinerigone vagans (Audouin, 1826) für Polen, gesammelt am Ufer des Flusses Olza nahe der tschechischen Grenze, wird vorgestellt und zusammen mit den bekannten Habitaten diskutiert. Eine Durchsicht der taxono- mischen Literatur zeigte auf, dass verschiedene Merkmale des männlichen Pedipalpus innerhalb des Verbreitungsgebiets und selbst einzelner Populationen sehr variabel sind. Zukünftige Untersuchungen sollten daher den Status der Populationen in Europa, demNahen und Mittleren Osten sowie Nordafrika inklusive Makaronesien klären. Fig. 1: Live male of Prinerigone vagans (Audouin, 1826) from Poland, dor- sal view Jürgen Guttenberger, Luis Guttenberger, Kurfürstenstr. 4, 92283 Lauterhofen, Germany; E-mail: juergenguttenberger@web.de Tobias Bauer, Staatliches Museum für Naturkunde Karlsruhe, Erbprinzenstr. 13, 76133 Karlsruhe, Germany; E-mail: tobias.bauer@smnk.de submitted 19.11.2017, accepted 26.3.2018, online 30.4.2018 Fig. 2: Male of Prinerigone vagans (Audouin, 1826) from Poland, dorsal view (Scale line = 0.5 mm)