Brown widow spider egg sac

Commonly found in sheltered outdoor locations such as under eaves, patio furniture, trash can handles, and within dense vegetation.

While the egg sac contains developing spiders that do not eat yet, adult Brown Widows eat a variety of insects and other small arthropods.

The egg sac is notable for its 'spikey' or 'tufted' appearance, resembling a sandbur. One sac can contain 120-150 eggs, and females can produce several sacs a season.

While the spiders are generally shy and less aggressive than Black Widows, they are venomous. Their bite is painful but rarely life-threatening to healthy adults. They benefit the ecosystem by controlling insect populations.