Allocosa chamberlini
This record describes Allocosa chamberlini (species). Recorded family: Lycosidae. Recorded order: Araneae.
Identification and Appearance
| Feature | Description |
|---|---|
| Carapace | Carapace dark red brown, veined with black, with several dark lines radiating from vicinity of dorsal groove, with indistinct pale median band and submarginal bands (or series of spots), with few setae. Sternum pale orange, often suffused with grey. Chelicerae red brown. |
| Legs | Legs orange, sparsely covered with setae; femora and tibiae each with 2 indistinct, black rings. Abdominal dorsum dull yellow, moderately to densely spotted with black; venter dull yellow, often with several small, black spots. |
Classification
Habitat and Range
Habitat
"Specimens have been collected under stones near water."
Geographic Range
USA; Montana and Nebraska, south to Arizona and New Mexico.
Additional species information
Species notes from the sources
Etymology: (Gertsch, 1934)
About Spiders: the wider group
Order-level background for Araneae, the group containing Allocosa chamberlini. 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 Allocosa chamberlini (5)
Photo credits: Contributed by tom murray; Additional contributions by cheins , Laura P.
Frequently Asked Questions About Allocosa chamberlini
What is Allocosa chamberlini?
Allocosa chamberlini is a species in the family Lycosidae, within the order Araneae.
How big is Allocosa chamberlini?
| Feature | Details |
|---|---|
| Male | 3.5-5.9mm |
| Female | 4.8-6.8mm |
How do you identify Allocosa chamberlini?
| Feature | Description |
|---|---|
| Carapace | Carapace dark red brown, veined with black, with several dark lines radiating from vicinity of dorsal groove, with indistinct pale median band and submarginal bands (or series of spots), with few setae. Sternum pale orange, often suffused with grey. Chelicerae red brown. |
| Legs | Legs orange, sparsely covered with setae; femora and tibiae each with 2 indistinct, black rings. Abdominal dorsum dull yellow, moderately to densely spotted with black; venter dull yellow, often with several small, black spots. |
Where is Allocosa chamberlini found?
| Feature | Details |
|---|---|
| Habitat | Specimens have been collected under stones near water. |
| Range | USA; Montana and Nebraska, south to Arizona and New Mexico. |