Agyneta barrowsi
This record describes Agyneta barrowsi (species). Recorded family: Linyphiidae. Recorded order: Araneae.
Identification and Appearance
| Feature | Description |
|---|---|
| Carapace | Carapace light orange-brown, shiny, finely reticulate; lightly suffused with gray along margin, radiating lines; sometimes with trident mark. |
| Abdomen | Abdomen uniformly light to dark gray. |
| Legs | Legs light yellow; basal part of femur darker. Epigynum |
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Arachnida
- Order
- Araneae (Spiders)
- Family
- Linyphiidae (Sheetweb and Dwarf Spiders)
- Subfamily
- Linyphiinae
- Genus
- Agyneta
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
Oak and oak-pine woods
Geographic Range
Eastern North America, west to Nebraska. According to the American Arachnological Society --ON, NS; AR, FL, GA, IL, IN, LA, MD, MI, MS, NC, NE, NJ, OH, TN, VA, WV but there is a record from PA here on BugGuide.
About Spiders: the wider group
Order-level background for Araneae, the group containing Agyneta barrowsi. 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.
Photos of Agyneta barrowsi (5)
Photo credits: Contributed by John Rosenfeld; Additional contributions by cheins
Frequently Asked Questions About Agyneta barrowsi
What is Agyneta barrowsi?
Agyneta barrowsi is a species in the family Linyphiidae, within the order Araneae.
How big is Agyneta barrowsi?
| Feature | Details |
|---|---|
| Male | 1.72mm |
| Female | 1.57mm |
How do you identify Agyneta barrowsi?
| Feature | Description |
|---|---|
| Carapace | Carapace light orange-brown, shiny, finely reticulate; lightly suffused with gray along margin, radiating lines; sometimes with trident mark. |
| Abdomen | Abdomen uniformly light to dark gray. |
| Legs | Legs light yellow; basal part of femur darker. Epigynum |
Where is Agyneta barrowsi found?
| Feature | Details |
|---|---|
| Habitat | Oak and oak-pine woods |
| Range | Eastern North America, west to Nebraska. According to the American Arachnological Society --ON, NS; AR, FL, GA, IL, IN, LA, MD, MI, MS, NC, NE, NJ, OH, TN, VA, WV but there is a record from PA here on BugGuide. |