Overview
- Hamburg’s environment authority, which confirmed Wednesday the species is established in the city, listed four verified records from 2024 and 2025 in Eimsbüttel, Eppendorf, Volksdorf and Sasel.
- All confirmed finds came from citizen reports submitted through observation.org and the ObsIdentify app.
- Authorities describe the northward move as a climate-driven range shift with no known ecological harm in Germany.
- NABU and the city say the spider can bite thin skin yet is usually harmless to people, with pain comparable to a wasp sting.
- The species often turns up in warm buildings rather than living there year-round, and residents are advised to trap it gently in a glass and release it outside while reporting sightings to improve mapping.