AraneaeLinyphiidae – Sheetweb and Dwarf Spiders

Walckenaeria communis

This record describes Walckenaeria communis (species). Recorded family: Linyphiidae. Recorded order: Araneae.

Identification and Appearance

Walckenaeria communis - Walckenaeria communis
(c) Tom Murray, some rights reserved (CC BY-NC), uploaded by Tom Murray

Orange to deep reddish orange in female, darkened anteriorly, often to almost black. The male carapace is similarly colored, but the anterior darkening is much less pronounced or even absent . Recently molted specimens are paler in color, but the female carapace seems always to be darkened anteriorly. Palp Very similar in appearance to W. directa -- see literature (Emerton 1882, Kaston 1948, etc.).

Wikipedia reference for Walckenaeria communis: https://en.wikipedia.org/wiki/Walckenaeria communis.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae (Spiders)
Family
Linyphiidae (Sheetweb and Dwarf Spiders)
Subfamily
Erigoninae
Genus
Walckenaeria

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Habitat

"habitats recorded are a lake shore, wet grass, and moss in fir woods"

Geographic Range

According to the American Arachnological Society --AB, BC, MB, NB, NF, NS, NT, ON, PQ, SK, YT; AR, AK, CA, CO, CT, ID, IL, IN, MA, ME, MI, NC, NH, NJ, NV, NY, OH, RI, UT, VT, WA, WI, WY

Seasonal Activity

Adults can be taken year-round.

Additional species information

Species notes from the sources

Etymology: Walckenaeria communis (Emerton, 1882)

About Spiders: the wider group

Order-level background for Araneae, the group containing Walckenaeria communis. Species-specific details appear above.

Group overview

As of 2023, 51,673 spider species in 136 families have been recorded, though an estimated 150,000 species exist. Spiders rank 7th in total species diversity among all organism orders. Only 0.5% of spider species pose any risk to human health.

Ecological role of the group

Spider venom contains complex peptides with diverse pharmacological activities, making them valuable for drug development research. Spiders produce up to 7 types of silk from specialized glands. Spider silk genes have been inserted into mammals and plants for biotech applications.

Economic and practical significance of the group

The global spider community kills an estimated 400-800 million tons of prey annually (2017 study). Spiders provide billions of dollars in natural pest control for agriculture. Spider silk is 5× stronger than steel of the same diameter, driving a biomaterials research industry.

Recorded sources for this group: World Spider Catalog, PNAS, Nature, ScienceDirect. Imported estimates may describe particular regions or reporting periods.

Explore Araneae families and species →

Photos of Walckenaeria communis (2)

Walckenaeria communis - photo 1
(c) Tom Murray, some rights reserved (CC BY-NC), uploaded by Tom Murray | Contributed by tom murray; Additional contributions by cheins , pfeiffer
Walckenaeria communis - photo 2
(c) Tom Murray, some rights reserved (CC BY-NC), uploaded by Tom Murray | Contributed by tom murray; Additional contributions by cheins , pfeiffer

Photo credits: (c) Tom Murray, some rights reserved (CC BY-NC), uploaded by Tom Murray | Contributed by tom murray; Additional contributions by cheins , pfeiffer

Frequently Asked Questions About Walckenaeria communis

What is Walckenaeria communis?

Walckenaeria communis is a species in the family Linyphiidae, within the order Araneae.

How big is Walckenaeria communis?
FeatureDetails
Male2.45-3.1mm
Female2.5-3.2mm
How do you identify Walckenaeria communis?

Orange to deep reddish orange in female, darkened anteriorly, often to almost black. The male carapace is similarly colored, but the anterior darkening is much less pronounced or even absent . Recently molted specimens are paler in color, but the female carapace seems always to be darkened anteriorly. Palp

Where is Walckenaeria communis found?
FeatureDetails
Habitathabitats recorded are a lake shore, wet grass, and moss in fir woods
RangeAccording to the American Arachnological Society --AB, BC, MB, NB, NF, NS, NT, ON, PQ, SK, YT; AR, AK, CA, CO, CT, ID, IL, IN, MA, ME, MI, NC, NH, NJ, NV, NY, OH, RI, UT, VT, WA, WI, WY
When is Walckenaeria communis active?

Walckenaeria communis: seasonal activity - Adults can be taken year-round..

How we use and review source data. Source count does not imply independent verification.

Photo credits: (c) Tom Murray, some rights reserved (CC BY-NC), uploaded by Tom Murray | Contributed by tom murray; Additional contributions by cheins , pfeiffer. Contributors retain copyright over their individual contributions.