Orodrassus coloradensis
This record describes Orodrassus coloradensis (species). Recorded family: Gnaphosidae. Recorded order: Araneae.
Identification and Appearance
Identification notes
Epigynum
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Arachnida
- Order
- Araneae (Spiders)
- Family
- Gnaphosidae (Ground Spiders)
- Genus
- Orodrassus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
Between 4,100-12,500 feet in altitude under stones, logs, and bark in aspen, spruce, fir, lodgepole pine and jack-pine forests, in cabins and in Malaise traps
Geographic Range
Eastern British Columbia eastward to Manitoba and south in the mountainous western U.S. to California and New Mexico
Seasonal Activity
Mature males: mid-May to late September Mature females: late March to mid-November
Additional species information
Species notes from the sources
Etymology: Author of the name:Emerton. Year first published:1877.
About Spiders: the wider group
Order-level background for Araneae, the group containing Orodrassus coloradensis. 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 Orodrassus coloradensis (4)
Photo credits: Contributed by Lynette Elliott; Additional contributions by cheins
Frequently Asked Questions About Orodrassus coloradensis
How big is Orodrassus coloradensis?
| Feature | Details |
|---|---|
| Males | ~8.0 mm |
| Females | ~9.0 mm |
How do you identify Orodrassus coloradensis?
Epigynum
Where is Orodrassus coloradensis found?
| Feature | Details |
|---|---|
| Habitat | Between 4,100-12,500 feet in altitude under stones, logs, and bark in aspen, spruce, fir, lodgepole pine and jack-pine forests, in cabins and in Malaise traps |
| Range | Eastern British Columbia eastward to Manitoba and south in the mountainous western U.S. to California and New Mexico |
When is Orodrassus coloradensis active?
Orodrassus coloradensis: seasonal activity - Mature males: mid-May to late September Mature females: late March to mid-November.