Atlas of the European Arachnids

This site continues the recording scheme of the Arachnologische Gesellschaft, formerly maintained by Aloysius Staudt (

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. For species with subspecies we mean the nominate form if nothing else is specified.

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 are 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.

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).

Recorded species
Recorded specimens

(These statistics are not updated in real-time for performance reasons. The actual numbers may be different.)

Citation: Arachnologische Gesellschaft (2017): Atlas of the European Arachnids, accessed at on {date of access}

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The acronym of a species is the first 3 letters of the genus name followed by the first 3 letters of the specific name, e. g. "aradia" for "Araneus diadematus".
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New on this site

Version 1.14.1:
  • Verification of new EMail addresses failed.
Version 1.14:
  • Log-in using EMail address;
  • Show locations as TK grid in source maps as necessary;
  • Bugfixes.
Version 1.13:
  • Detailed source lists for species statistics;
  • New time range selector for species record maps.
Version 1.12.1:
  • Decades can be hidden when printing;
  • Bugfixes
Version 1.12:
  • Print additional federal states (Germany);
  • Improved record history statistics;
  • Selection dialog when searching for a location in the map has more than one result.

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