Arachnologische Mitteilungen 54

Arachnologische Mitteilungen / Arachnology Letters 54: 5-7 Karlsruhe, September 2017 The family Zodariidae comprises 1126 species in 84 genera. The most species-rich genus, Zodarion , comprises 158 species, 100 species of which occur in Europe (World Spider Cata- log 2017). Representatives of Zodarion are obligatory ant- eaters (each species being specialized on a certain group of ants), shelter themselves in silken retreats camouflaged by soil particles and morphologically, chemically and behaviourally mimic ants (Pekár et al. 2005). The centre of the distributi- on area for this genus is the Mediterranean: so far only four species – Zodarion germanicum (C. L. Koch, 1837), Zodarion hamatum Wiehle, 1964, Zodarion italicum (Canestrini, 1868) and Zodarion rubidum Simon, 1914 – are known to extend into Central Europe (Nentwig et al. 2017). Here we present the record of a fifth species of Zodarion in Central Europe. Material and methods Zodarion ohridense Wunderlich, 1973. Czech Republic, Elbe Lowland, Nová Ves I, 3 km northwest of Kolín, natu- ral monument Lom u Nové Vsi (abandoned stone quarry), 50.0549°N, 15.1323°E (grid no. 5956), 220 m a.s.l., 1 male, pitfall trap, 1–30 June 2015, leg. Jiří Skala, det. Milan Řezáč & Tomáš Krejčí.The male was preserved in 75 % ethanol and photographed using a HIROX RH-2000 digital microscope. The material is deposited in the collection of the second au- thor at the Crop Research Institute, Prague. Results Main morphological features. The male of Zodarion ohri- dense is characterised by the following morphological fea- tures (Bosmans 2009, Nentwig et al. 2017): Body length 2.5– 3.2 mm. Prosoma (Fig. 1a) reddish brown, fovea and margin darker. Legs yellowish brown, femora dark brown. Opistho- soma dorsally dark sepia brown, ventrally with whitish oval spot. Palp (Fig. 1b, c) with rather short tibial apophysis, with broad base, terminally pointed; tegulum with angularity at base; median apophysis with two large prolateral teeth; em- bolus linear, with subterminal bend. The colouration of Z. ohridense is very similar to Z. germa- nicum , Z. italicum and Z. hamatum but it is easy to distinguish these species according to the shape of the copulatory organs (Bosmans 1997, 2009). Only Z. rubidum distinctly differs in colouration from other species. It has a light brown proso- ma and legs, and the opisthosoma is brown-violet (Bosmans 1997). Natural history. Zodarion ohridense was described from the Ohrid region in Macedonia (Wunderlich 1973) and was con- sidered an endemic species of the Balkan Peninsula. So far it is known from Croatia (Bosmans 2009), Bulgaria (Blagoev et al. 2001, Tzonev & Lazarov 2001, Deltshev 2004, Lazarov 2007), Greece (Bosmans 2009) and Macedonia (Komnenov 2002, 2003, Lazarov 2004, Bosmans 2009) (Fig. 2). In Mace- donia it was found in the Shar Mountains (1200–1700 m) in Acer sp. and Quercus cerris forest and in Picea abies and Fa- gus sylvatica forests (Komnenov 2002) and in the Jakupica Mountains (1400–1900 m) on high mountain pastures or in Fagus sylvatica forests (Komnenov 2003). Deltshev (2004) found this species in southwestern Bulgaria in a Pinus forest (200–250 m). In Greece Bosmans (2009) found it in a rive- rine (430 m) and deciduous forest (600 m) and in grassland (1910 m). Discussion In Central Europe four species of the genus Zodarion have been found so far. The first, Z. germanicum , was described from Germany (Bosmans 1997) and is probably the only Zodarion species which can be considered an autochthonous component of the Central European fauna. The other three species are probably not native to Central Europe and because both ballooning ability and terrestrial migration are very low in Zodarion spiders, these species are believed to have been introduced into Central Europe via traffic (Bönsel et al. 2000, Pekár 2002, Pekár et al . 2005, Komposch 2009). The genus Zodarion is well preadapted for passive human transport thanks to its tolerance for dry environments and especially by attaching the silken shelters masked by soil particles (so- called igloos) to solid objects on the ground ( Jocqué 1991). Spiders are thus transported with these objects and, if there are suitable conditions at their final destination, the spiders can establish new populations far from their continuous dis- tribution area (Pekár 2002). The most frequently found species in the vicinity of rail- ways tracks is Zodarion rubidum (Pekár 2002). It was descri- bed from the south-eastern French Pyrenees (Simon 1914) and in 1971 it was found for the first time outside France, in central Austria (Wunderlich 1973). In 1979 this species Zodarion ohridense (Araneae: Zodariidae) – a new record for Central Europe Tomáš Krejčí, Milan Řezáč & Tomáš Kadlec doi: 10.5431/aramit5402 Abstract. Zodarion ohridense Wunderlich, 1973 was found to be introduced in an abandoned stone quarry near Kolín in the Czech Repu- blic. The Central European species of Zodarion are discussed. Keywords: Czech Republic, faunistics, introduced species, new record, quarry Zusammenfassung. Zodarion ohridense (Araneae: Zodariidae) – ein Neunachweis für Mitteleuropa. Zodarion ohridense Wunder- lich, 1973 wurde in einen aufgelassenen Steinbruch bei Kolín, Tschechische Republik, eingeschleppt. Die mitteleuropäischen Zodarion - Arten werden diskutiert. Tomáš KREJČÍ & Tomáš KADLEC, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Praha 6 – Suchdol, CZ-165 21, Czech Republic; E-mails: tomesso@seznam.cz ; kadlect@fzp.czu.cz Milan ŘEZÁČ, Biodiversity Lab, Crop Research Institute, Drnovská 507, Praha 6 – Ruzyně, CZ-161 06, Czech Republic; E-mail: rezac@vurv.cz submitted 3.2.2017, accepted 18.4.2017, online 30.4.2017