Haplodrassus bicornis
This record describes Haplodrassus bicornis (species). Recorded family: Gnaphosidae. Recorded order: Araneae.
Identification and Appearance
Haplodrassus bicornis is a species of ground spider in the family Gnaphosidae. It is found in the United States and Canada.
Wikipedia reference for Haplodrassus bicornis: https://en.wikipedia.org/wiki/Haplodrassus bicornis.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Arachnida
- Order
- Araneae (Spiders)
- Family
- Gnaphosidae (Ground Spiders)
- Genus
- Haplodrassus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
British Columbia east to southern New England and south to Arizona and New Mexico in the west and Virginia in the east
About Spiders: the wider group
Order-level background for Araneae, the group containing Haplodrassus bicornis. 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 Haplodrassus bicornis (3)
Photo credits: Contributed by tom murray; Additional contributions by cheins
Frequently Asked Questions About Haplodrassus bicornis
What is Haplodrassus bicornis?
Haplodrassus bicornis is a species in the family Gnaphosidae, within the order Araneae.
How big is Haplodrassus bicornis?
| Feature | Details |
|---|---|
| Males | ~4.1 mm |
| Females | ~6.2 mm |
Where is Haplodrassus bicornis found?
Range: British Columbia east to southern New England and south to Arizona and New Mexico in the west and Virginia in the east