Bug Identifier
Brown widow spider
Community identification

Brown widow spider

Latrodectus geometricus

Order & Family
Araneae, Theridiidae
Size
Females typically have a body length of about 7-10 mm, with legs extending further. Males are much smaller, around 2-4 mm.
See this bug in the Encyclopedia

Natural Habitat

Often found in human-altered environments such as around homes, sheds, garages, and other undisturbed areas. They prefer dark, secluded spaces.

Diet & Feeding

Strictly carnivorous, preying on a variety of insects and other small arthropods that get caught in their irregular, tangled web.

Behavior Patterns

They are nocturnal and generally reclusive. Brown widows construct messy, irregular 웹s, typically in protected locations. The egg sac is distinctively spiky, resembling a sea mine, and is a key identifier. They are not aggressive and will usually flee rather than bite.

Risks & Benefits

Potential Risk: Their venom is neurotoxic, similar to the black widow, but generally less potent. Bites can cause localized pain, muscle cramps, headache, and nausea, but are rarely life-threatening to healthy adults. Potential Benefit: They help control populations of common household and garden insect pests.