Callobius pictus
This record describes Callobius pictus (species). Recorded family: Amaurobiidae. Recorded order: Araneae.
Identification and Appearance
Callobius pictus is a species of hacklemesh weaver in the family of spiders known as Amaurobiidae. It is found in the United States and Canada.
Identification notes
Specimen confirmed by expert Rod Crawford: Palp (ventral/lateral/dorsal) Epigynum
Wikipedia reference for Callobius pictus: https://en.wikipedia.org/wiki/Callobius pictus.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Arachnida
- Order
- Araneae (Spiders)
- Family
- Amaurobiidae (Hacklemesh Weavers)
- Genus
- Callobius
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
In standing, rotten conifer stumps and rotten conifer logs and in wood piles
Geographic Range
Mainly along the Pacific Coast from Alaska to California, with one record from Idaho
Additional species information
Species notes from the sources
Etymology: Author of the name: Simon. Year first published: 1884.
About Spiders: the wider group
Order-level background for Araneae, the group containing Callobius pictus. 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 Callobius pictus (6)
Photo credits: (c) rolandwirth, some rights reserved (CC BY-NC), uploaded by rolandwirth | (c) Ian Cooper, some rights reserved (CC BY-NC), uploaded by Ian Cooper | (c) Andrew Simon, some rights reserved (CC BY-NC), uploaded by Andrew Simon | (c) Matt Goff, some rights reserved (CC BY-NC-SA), uploaded by Matt Goff | Contributed by Lynette Elliott; Additional contributions by cheins
Frequently Asked Questions About Callobius pictus
What is Callobius pictus?
Callobius pictus is a species in the family Amaurobiidae, within the order Araneae.
How do you identify Callobius pictus?
Specimen confirmed by expert Rod Crawford: Palp (ventral/lateral/dorsal) Epigynum
Where is Callobius pictus found?
| Feature | Details |
|---|---|
| Habitat | In standing, rotten conifer stumps and rotten conifer logs and in wood piles |
| Range | Mainly along the Pacific Coast from Alaska to California, with one record from Idaho |