Zercon tragardhi Halbert, 1923: 375. Specimens examined: 29 females, 6 males and 1 deutonymph. Average length and width of idiosoma: 337/233 µm (in females); 294/207 µm (in males). World distribution: Austria, Britain, Ireland, Sweden, Switzerland, Poland, Russia, Turkey (Urhan & Ayyıldız,
1992; Urhan, 1995), Germany, Czech Republic, Iceland, Lithuania, Hungary, Romania, Slovakia, Ukraine
(Mašán & Fend'a, 2004) and Slovenia (Ujvári, 2009a).