AraneaeTheridiidae – Cobweb Spiders

Spintharus flavidus

This record describes Spintharus flavidus (species). Recorded family: Theridiidae. Recorded order: Araneae.

Identification and Appearance

Spintharus flavidus - Spintharus flavidus
Contributed by Jeff Hollenbeck; Additional contributions by Lynette Elliott , Mike Quinn

Most easily found by sweeping understory vegetation in shaded woodlands.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae (Spiders)
Family
Theridiidae (Cobweb Spiders)
Genus
Spintharus

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Geographic Range

TX-FL-MA-OK / s. to Bolivia

Seasonal Activity

Jul-Oct (BG data)

Additional species information

Species notes from the sources

Etymology: Author: Hentz, 1850.

About Spiders: the wider group

Order-level background for Araneae, the group containing Spintharus flavidus. 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.

Explore Araneae families and species →

Photos of Spintharus flavidus (5)

Spintharus flavidus - photo 1
Contributed by Jeff Hollenbeck; Additional contributions by Lynette Elliott , Mike Quinn
Spintharus flavidus - photo 2
Contributed by Jeff Hollenbeck; Additional contributions by Lynette Elliott , Mike Quinn
Spintharus flavidus - photo 3
Contributed by Jeff Hollenbeck; Additional contributions by Lynette Elliott , Mike Quinn
Spintharus flavidus - photo 4
Contributed by Jeff Hollenbeck; Additional contributions by Lynette Elliott , Mike Quinn
Spintharus flavidus - photo 5
Contributed by Jeff Hollenbeck; Additional contributions by Lynette Elliott , Mike Quinn

Photo credits: Contributed by Jeff Hollenbeck; Additional contributions by Lynette Elliott , Mike Quinn

Frequently Asked Questions About Spintharus flavidus

What is Spintharus flavidus?

Spintharus flavidus is a species in the family Theridiidae, within the order Araneae.

How big is Spintharus flavidus?

4-5 mm

Where is Spintharus flavidus found?

Range: TX-FL-MA-OK / s. to Bolivia

When is Spintharus flavidus active?

Spintharus flavidus: seasonal activity - Jul-Oct (BG data).

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Jeff Hollenbeck; Additional contributions by Lynette Elliott , Mike Quinn. Contributors retain copyright over their individual contributions.