Diguetidae

Common Name

Coneweb spiders

Overview

Diguetidae is a small family of spiders primarily found in arid regions of the southwestern United States and Mexico. These spiders are known for constructing characteristic cone-shaped webs, often beneath rocks, crevices, or vegetation.

Taxonomy

• Kingdom : Animalia
• Phylum : Arthropoda
• Class : Arachnida
• Order : Araneae
• Infraorder : Araneomorphae
• Family : Diguetidae

Key Characteristics

• Webs : Construct intricate, three-dimensional cone-shaped webs.
• Size : Medium-sized spiders, typically between 5–10 mm in body length.
• Body : Elongated cylindrical body shape with long legs.
• Coloration : Usually pale or light brown with darker markings.

Life Cycle

1. Egg : Laid in egg sacs within the web.
2. Spiderling : Dispersing from the egg sac, spiderlings create small webs and undergo several molts.
3. Adult : Mature spiders maintain individual webs, where they live and hunt.

Behavior and Ecology

• Habitat : Prefer arid and semi-arid habitats, commonly found under rocks or in crevices.
• Diet : Primarily insectivorous, preying on small insects caught in their webs.
• Reproduction : Males court females by vibrating the web and depositing a sperm packet that the female picks up for fertilization.

Notable Species

• Diguetia canities : One of the more widespread species, commonly found in the southwestern United States.

Conservation

Diguetidae are not currently considered at risk; however, habitat degradation in arid regions may pose future threats.

Significance to Humans

These spiders are harmless to humans and contribute to controlling insect populations.

Fun Fact

• Web Design : Diguetidae webs are so distinct that they can often be identified by their unique shape alone.
• Habitat Engineers : These spiders modify their environment by using detritus and vegetation to fortify their webs.
• Subterranean Experts : Diguetidae often utilize burrows or rock crevices, giving them an advantage in harsh desert climates.