# Sand bear spider (*Arctosa perita*)

Canonical page: https://creaturedata.com/animals/sand-bear-spider  
Data as of: 2026-11-14

The sand bear spider (Arctosa perita) is a species in the family Lycosidae, order Araneae. Recorded adults reach 8 mm in length. Source checklists list it for 2 countries: France and Portugal.

## Quick facts

| Fact | Value |
|---|---|
| Weight | Not recorded |
| Length | 6 mm – 8 mm |
| Lifespan | Not recorded |
| Diet | Invertivore |
| Main food | Not recorded |
| Habitat | Not recorded |
| Young per litter or clutch | Not recorded |
| Active | By day (diurnal) |
| Generations a year | One |
| Conservation status | Not recorded |
| Countries on record | 2 countries |

## Introduced range

The Global Register of Introduced and Invasive Species lists it as introduced in 1 country. Introduced: Canada. Source: https://griis.org/ (CC BY 4.0).

## Classification

- kingdom: Animalia
- phylum: Arthropoda
- class: Arachnida
- order: Araneae
- family: Lycosidae
- genus: Arctosa
- species: *Arctosa perita* (Latreille, 1799)

Synonyms: *Aranea perita*, *Arctosa cinerea*, *Arctosa filicata*, *Arctosa picta*, *Arctosa picta*, *Arctosa velox*, *Lycosa perita*

## Countries on record

Countries where Catalogue of Life checklists list the species. Many checklists carry no country data, so the list is often incomplete. It is not a range map.

France, Portugal

## Common questions

### How big is the sand bear spider?

An adult sand bear spider measures 6 mm – 8 mm long, according to values recorded on Wikidata.

### Where does the sand bear spider live?

Catalogue of Life checklists list the sand bear spider for 2 countries: France and Portugal. Checklist coverage is uneven, so the true range may be wider.

### Is the sand bear spider an invasive species?

The Global Register of Introduced and Invasive Species lists the sand bear spider as introduced in 1 country: Canada, but does not flag it as invasive in any of them.

### What kind of animal is the sand bear spider?

The sand bear spider (Arctosa perita) belongs to the family Lycosidae in the order Araneae.

## Sources

- [Catalogue of Life eXtended Release](https://www.checklistbank.org/dataset/316691), CC BY 4.0, 2026-10-16 XR. Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf
- [Global Register of Introduced and Invasive Species (GRIIS)](https://griis.org/), CC BY 4.0, 2026-11-13. Pagad, S., Genovesi, P., Carnevali, L., Schigel, D. & McGeoch, M.A. (2018) Introducing the Global Register of Introduced and Invasive Species. Scientific Data 5: 170202. https://doi.org/10.1038/sdata.2017.202. Country checklists published through GBIF by the IUCN SSC Invasive Species Specialist Group.
- [TraitCH: a multi-taxa functional trait dataset for Switzerland and Europe](https://doi.org/10.5281/zenodo.15063844), CC BY 4.0, 2.0. Chauvier, Y., Adde, A., Bergamini, A. et al. (2025) TraitCH: a multi-taxa functional trait dataset for Switzerland and Europe. Zenodo. https://doi.org/10.5281/zenodo.15063844

Cite as: Sand bear spider (Arctosa perita). Retrieved from https://creaturedata.com/animals/sand-bear-spider