# Forest cobweb weaver (*Phylloneta impressa*)

Canonical page: https://creaturedata.com/animals/forest-cobweb-weaver  
Data as of: 2026-11-14

The forest cobweb weaver (Phylloneta impressa) is a species in the family Theridiidae, order Araneae. Recorded adults reach 5.5 mm in length. Source checklists list it for 2 countries: China and Romania.

## Quick facts

| Fact | Value |
|---|---|
| Weight | Not recorded |
| Length | 2.5 mm – 5.5 mm |
| Lifespan | Not recorded |
| Diet | Invertivore |
| Main food | Not recorded |
| Habitat | forest, grassland, 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: Black-shouldered shieldbug (*Carpocoris purpureipennis*), Steppe grasshopper (*Chorthippus dorsatus*), Chorthippus apricarius (*Chorthippus apricarius*), Lucerne bug (*Adelphocoris lineolatus*), Adelphocoris quadripunctatus (*Adelphocoris quadripunctatus*), Adelphocoris seticornis (*Adelphocoris seticornis*), Agallia brachyptera (*Agallia brachyptera*), Anaceratagallia ribauti (*Anaceratagallia ribauti*), Anoscopus flavostriatus (*Anoscopus flavostriatus*), Aphrodes bicincta (*Aphrodes bicincta*), Aphrodes makarovi (*Aphrodes makarovi*), Arthaldeus pascuellus (*Arthaldeus pascuellus*). Recorded predators: One-eyed centipede (*Lamyctes emarginatus*), Alopecosa cuneata (*Alopecosa cuneata*), Leistus ferrugineus (*Leistus ferrugineus*), Pardosa palustris (*Pardosa palustris*), Calathus melanocephalus (*Calathus melanocephalus*), Common reed bunting (*Emberiza schoeniclus*), Tent spider (*Pisaura mirabilis*), Pterostichus strenuus (*Pterostichus strenuus*), Trochosa ruricola (*Trochosa ruricola*). 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: Theridiidae
- genus: Phylloneta
- species: *Phylloneta impressa* (L. Koch, 1881)

Synonyms: *Allotheridion impressum*, *Phylloneta botezati*, *Phylloneta cornuta*, *Phylloneta frigicola*, *Phylloneta impressa intermedia*, *Phylloneta qingzangensis*, *Steatoda sisyphia*, *Theridion botezati*, *Theridion cornutum*, *Theridion frigicola*, *Theridion impressum*, *Theridion impressum intermedium*, *Theridion qingzangense*, *Theridion sisyphum*

## 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.

China, Romania

## Common questions

### How big is the forest cobweb weaver?

An adult forest cobweb weaver measures 2.5 mm – 5.5 mm long, according to values recorded on Wikidata.

### Where does the forest cobweb weaver live?

Catalogue of Life checklists list the forest cobweb weaver for 2 countries: China and Romania. Checklist coverage is uneven, so the true range may be wider.

### What kind of animal is the forest cobweb weaver?

The forest cobweb weaver (Phylloneta impressa) belongs to the family Theridiidae in the order Araneae.

### What eats the forest cobweb weaver?

Animals recorded preying on the forest cobweb weaver include one-eyed centipede, alopecosa cuneata, leistus ferrugineus and pardosa palustris. The records are compiled by Global Biotic Interactions from published studies; each pair is reported by at least two datasets.

### Which animals does the forest cobweb weaver eat?

Animals recorded as prey of the forest cobweb weaver include black-shouldered shieldbug, steppe grasshopper, chorthippus apricarius and lucerne bug. 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: Forest cobweb weaver (Phylloneta impressa). Retrieved from https://creaturedata.com/animals/forest-cobweb-weaver