# Raft spider (*Dolomedes fimbriatus*)

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

The raft spider (Dolomedes fimbriatus) is a species in the family Dolomedidae, order Araneae. Recorded adults reach 2.2 cm in length. Source checklists list it for 2 countries: Germany and Italy.

## Quick facts

| Fact | Value |
|---|---|
| Weight | Not recorded |
| Length | 9 mm – 2.2 cm |
| Lifespan | Not recorded |
| Diet | Invertivore |
| Main food | Not recorded |
| Habitat | wetland |
| Young per litter or clutch | Not recorded |
| Active | By day (diurnal) |
| Conservation status | Not recorded |
| Countries on record | 2 countries |

## Recorded prey and predators

Recorded prey: Slender amber snail (*Oxyloma elegans*), Marpissa radiata (*Marpissa radiata*), Vagrant darter (*Sympetrum vulgatum*), Clubiona stagnatilis (*Clubiona stagnatilis*), Marmalade fly (*Episyrphus balteatus*), Furrow spider (*Larinioides cornutus*), Bordered orbweaver (*Neoscona adianta*), Tent spider (*Pisaura mirabilis*), Ramshorn (*Planorbis planorbis*), Sepedon spinipes (*Sepedon spinipes*), Giant pondsnail (*Stagnicola corvus*), Large amber snail (*Succinea putris*). Recorded predators: Common grasshopper warbler (*Locustella naevia*), Tent spider (*Pisaura mirabilis*), Common reed bunting (*Emberiza schoeniclus*). Each pair is recorded by at least two datasets compiled by Global Biotic Interactions (https://www.globalbioticinteractions.org/, CC0 1.0).

## Classification

- kingdom: Animalia
- phylum: Arthropoda
- class: Arachnida
- order: Araneae
- family: Dolomedidae
- genus: Dolomedes
- species: *Dolomedes fimbriatus* (Clerck, 1757)

Synonyms: *Aranea 14-punctata*, *Aranea elegans*, *Aranea elongata*, *Aranea marginata*, *Aranea paludosa*, *Aranea schaefferi*, *Aranea virescens*, *Araneus fimbriatus*, *Araneus undatus*, *Argyroneta bicolor*, *Dolomedes elegans*, *Dolomedes italicus*, *Dolomedes ornatus*

## 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.

Germany, Italy

## Common questions

### How big is the raft spider?

An adult raft spider measures 9 mm – 2.2 cm long, according to values recorded on Wikidata.

### Where does the raft spider live?

Catalogue of Life checklists list the raft spider for 2 countries: Germany and Italy. Checklist coverage is uneven, so the true range may be wider.

### What kind of animal is the raft spider?

The raft spider (Dolomedes fimbriatus) belongs to the family Dolomedidae in the order Araneae.

### What eats the raft spider?

Animals recorded preying on the raft spider include common grasshopper warbler, tent spider and common reed bunting. The records are compiled by Global Biotic Interactions from published studies; each pair is reported by at least two datasets.

### Which animals does the raft spider eat?

Animals recorded as prey of the raft spider include slender amber snail, marpissa radiata, vagrant darter and clubiona stagnatilis. The records are compiled by Global Biotic Interactions from published studies; each pair is reported by at least two datasets.

## 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 Biotic Interactions (GloBI): interpreted data products](https://www.globalbioticinteractions.org/), CC0 1.0, 0.11. Poelen, J.H., Simons, J.D. & Mungall, C.J. (2014) Global Biotic Interactions: an open infrastructure to share and analyze species-interaction datasets. Ecological Informatics 24: 148–159. https://doi.org/10.1016/j.ecoinf.2014.08.005. Data: https://doi.org/10.5281/zenodo.22691479, with each record's original reference.
- [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: Raft spider (Dolomedes fimbriatus). Retrieved from https://creaturedata.com/animals/raft-spider