Black widow spider (likely)

Dark, sheltered, undisturbed sites such as wall gaps, garages, sheds, crawlspaces, and debris. Common in warm, dry regions, including around buildings.

Carnivorous; captures flies, mosquitoes, beetles, and other arthropods in an irregular, sticky cobweb, then immobilizes prey with venom and digestive enzymes.

Primarily nocturnal and reclusive, usually remaining in its web retreat. Females produce silk egg sacs and may bite defensively when trapped or pressed, rather than attacking people.

A bite can cause severe muscle pain, cramping, sweating, nausea, and other latrodectism symptoms; medical evaluation is warranted for significant symptoms. It benefits ecosystems by controlling insects, but the image alone cannot confirm species.