Cybaeus morosus
This record describes Cybaeus morosus (species). Recorded family: Cybaeidae. Recorded order: Araneae.
Identification and Appearance
The large lunate cavity at the tip of the proximal arm of the tegular apophysis (Figs. 15, 34) diagnoses the male of C. morosus. The female is diagnosed by the circular atrial depressions (Figs. 37–38). This species is unlikely to be confused with other species of Cybaeus .
Classification
Habitat and Range
Geographic Range
"Western North America from Adak Island in the Aleutians south to west central California and inland to the British Columbia Rocky Mountains and eastern Oregon ".
About Spiders: the wider group
Order-level background for Araneae, the group containing Cybaeus morosus. 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 Cybaeus morosus (5)
Photo credits: Contributed by Ken Schneider
Frequently Asked Questions About Cybaeus morosus
What is Cybaeus morosus?
Cybaeus morosus is a species in the family Cybaeidae, within the order Araneae.
How do you identify Cybaeus morosus?
The large lunate cavity at the tip of the proximal arm of the tegular apophysis (Figs. 15, 34) diagnoses the male of C. morosus. The female is diagnosed by the circular atrial depressions (Figs. 37–38). This species is unlikely to be confused with other species of Cybaeus .
Where is Cybaeus morosus found?
Range: Western North America from Adak Island in the Aleutians south to west central California and inland to the British Columbia Rocky Mountains and eastern Oregon .