V srpnu 2001 doklad o výskytu křižáka pruhovaného (Argiope bruennichii) v oblasti Opavska (Slezsko).

In August 2001, the occurrence of the Wasp Spider (Argiope bruennichii) was con-firmed in the Opava region (Silesia). Historically, the site was the only locality for the spider species in what is now the Czech Republic in 1952 - 1991. Since the 1990s, the number of sites inhabiting by the Wasp Spider has been increasing in the country.