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: March 29, 2023, 00:45:05)

Citation: Arachnologische Gesellschaft (2023): Atlas of the European Arachnids, accessed at on {date of access}

Locations on maps are only displayed with a reduced precision when you are not logged in. Furthermore, the printing functions and advanced statistics are not available. Members of the Arachnologische Gesellschaft can log in at any time and use the Atlas without these restrictions after they have registered for the Members' Area of the main pages. For further information about an AraGes membership see here.

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 World Arachnida Catalog. 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. Records from outside of Germany are partially 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.

The following grid systems are supported:

Additional record data like collection method, sex, 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

De Smedt P, Van de Poel S & Stevens S (2022): First record of the harvestman Astrobunus laevipes (Canestrini, 1872) in Belgium (Opiliones: Phalangiidae).Journal of the Belgian Arachnological Society 37 (2): 99–103 

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Recently added sources

De Smedt P, Van de Poel S & Stevens S (2022): First record of the harvestman Astrobunus laevipes (Canestrini, 1872) in Belgium (Opiliones: Phalangiidae).Journal of the Belgian Arachnological Society 37 (2): 99–103 
Grbić G & Hänggi A (2023): Additional spider records from Mt. Fruška Gora (Serbia) with a first insight into winter species.Acta Entomologica Serbica 27(2): 67–81; DOI: 10.5281/zenodo.7576487 
Rozwałka R, Dawidowicz Ł & wawer W (2017): Three alien spider species (Araneae: Theridiidae) newly found in Poland.Fragmenta Faunistica 60 (1): 61–66; DOI: 10.3161/00159301FF2017.60.1.061 
Christophoryová J, Krajčovičová K, Šťáhlavský F, Španiel S & Opatova V (2023): Integrative taxonomy approach reveals cryptic diversity within the phoretic pseudoscorpion genus Lamprochernes (Pseudoscorpiones: Chernetidae).Insects 14, 122: 1–30; DOI: 10.3390/insects14020122 
Bauchhenß E (2022, unpublished): Spinnen thermophiler Gebüsche am Stadtrand von Wien. 

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Currently processed sources

De Vore-Scribante A (1999): Les pseudoscorpions de la Suisse: étude systématique, faunistique et biogéographique.These, Faculte des Sciences, Université de Genève & Muséum d'histoire naturelle: 314 S.; DOI: 10.13097/archive-ouverte/unige:79720 

New on this site

March 6, 2023:
Version 1.143:
  • new: Search for leg./det.
March 3, 2023:
Version 1.142:
  • Support for images in WebP format.
February 8, 2023:
Version 1.141:
  • Support for another format of date range of records when importing data.
  • You can now be logged in with multiple computers independently, i. e. logging out on one computer does not log you out on the other computers.
January 15, 2023:
Version 1.140:
  • New form for frequently reported species.
January 14, 2023:
Version 1.139:
  • Option to attach tags to records for various purposes (currently only usable by editors).

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