Atlas of the European Arachnids

The Atlas of the European Arachnids is an unsystematic but continuously updated collection of records (occurrences) of arachnid species (excluding mites) in central Europe (while not excluding surrounding regions). This site continues the recording scheme of the Arachnologische Gesellschaft, formerly maintained by Aloysius Staudt (

Recorded species
Min. recorded specimens

(These statistics are not updated in real-time for performance reasons. The actual numbers may be different. Last update: 2018-11-18 10:00:42)

Citation: Arachnologische Gesellschaft (2018): Atlas of the European Arachnids, accessed at on {date of access}

The taxonomy of Araneae on this site follows that of the World Spider Catalog in its latest version, that of the small orders (except Opiliones and Scorpiones) follows the catalogues of Mark S. Harvey. If nothing else is specified for a species from a species group, the species “s. str.” is meant.

All geographic coordinates use the WGS84 datum.

Records from the previous recording scheme are strongly reduced (usually only one record per decade, source, species and map grid). Furthermore, the record date is known only as a decade. For some sources the record date was corrected to be precise to a year. Only the latest records carry an exact date or date range spanning only a few days.

Locations from the former recording scheme were only known as a grid number of the topo-map series TK 25 (an “MTB”), i. e. they are only precise to an area of 10×6 minutes. Only the latest records are more precise. Older records from outside of Germany are associated with a „pseudo”-MTB, i. e. they lie within a rectangular area with coordinates derived from the TK 25 grid number even though this sheet does not actually exist in the series. New records can be localized to any position in the world, also outside the TK 25 series area. Furthermore, some older records were subsequently localized more precisely.

Additional record data like collection method, gender, maturity, biotope type, etc. are typically only known for the newest records.

Biotopes are classfied according to the EUNIS (2007 revision).

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Sources with recent updates

Kielhorn K-H (2018): Spinnen und Weberknechte in der Dübener Heide (Arachnida: Araneae, Opiliones); in: Entomologen-Vereinigung Sachsen-Anhalt: Entomofaunistische Untersuchungen in der Dübener Heide, Teilbereich Sachsen-Anhalt: 461–478 
Wurst C (2008): Stellas Pseudoskorpion Anthrenochemes stellae LOHMANDER, 1939 in Baden-Württemberg (Pseudoscorpionida: Chernetidae).Mitteilungen des Entomologischen Vereins Stuttgart 43: 73–76 
Casemir H (1955): Die Spinnenfauna des Hülserbruches bei Krefeld.Gewässer und Abwässer 8: 24–51 
Casemir H (1961): Spinnen aus dem Naturschutzgebiet Feldberg (Schwarzwald).Berichte der Naturforschenden Gesellschaft zu Freiburg im Breisgau 51: 109–118 
Casemir H (1960): Beitrag zur Kenntnis der Niederrheinischen Spinnenfauna.Decheniana 113(2): 239–264 
Casemir H (1961): Einige für Deutschland neue und seltene Spinnenarten.Zoologischer Anzeiger 166: 195–206 
Hiebsch H (1973): Beitrag zur Spinnenfauna des Naturschutzgebietes "Saukopfmoor".Abhandlungen und Berichte des Museums der Natur Gotha 1973: 35–56 

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New on this site

Version 1.36:
  • Map printing for Czech Republic and Slovakia
  • Improvements for printing
  • Bugfixes
Version 1.35:
  • Improved rendering on mobile devices
  • Support for the czech grid system
Version 1.34:
  • Filter for country/region when searching for location
  • Improved general statistics
  • Bugfixes
Version 1.32:
  • List of recently added sources on main page.
  • Record history statistics on species pages.
Version 1.31:
  • Email notification settings are now more detailed
  • Source list for species lists
  • Location name search in species maps
  • Family statistics separated by order
  • Data protection declaration

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