Cercidia prominens
This record describes Cercidia prominens (species). Recorded family: Araneidae. Recorded order: Araneae.
Identification and Appearance
Levi was unsure if this species was introduced to North America due to its spotty distribution. It is well known from the Old World.
Classification
Habitat and Range
Geographic Range
This species has a northern distribution and is known from Massachusetts and New Hampshire west to Alberta.
About Spiders: the wider group
Order-level background for Araneae, the group containing Cercidia prominens. 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 Cercidia prominens (5)
Photo credits: Contributed by tom murray; Additional contributions by cheins