Castianeira gertschi
This record describes Castianeira gertschi (species). Recorded family: Corinnidae. Recorded order: Araneae.
Identification and Appearance
This species has an abdomen that darkens to dark brown at the posterior end. We believe this is a reliable field marking for this species.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Arachnida
- Order
- Araneae (Spiders)
- Family
- Corinnidae (Antmimics and Ground Sac Spiders)
- Genus
- Castianeira
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
Connecticut west to Oklahoma and south to Florida
Additional species information
Species notes from the sources
Etymology: Author of the name: Kaston. Year first published: 1945.
About Spiders: the wider group
Order-level background for Araneae, the group containing Castianeira gertschi. 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 Castianeira gertschi (2)
Photo credits: Contributed by Lynette Elliott; Additional contributions by cheins
Frequently Asked Questions About Castianeira gertschi
What is Castianeira gertschi?
Castianeira gertschi is a species in the family Corinnidae, within the order Araneae.
How do you identify Castianeira gertschi?
This species has an abdomen that darkens to dark brown at the posterior end. We believe this is a reliable field marking for this species.
Where is Castianeira gertschi found?
Range: Connecticut west to Oklahoma and south to Florida