Bug Identifier
Black Widow Spider
Community identification

Black Widow Spider

Latrodectus species

Order & Family
Order: Araneae, Family: Theridiidae
Size
Females are typically 8-13 mm in body length; males are smaller, about 3-6 mm.
See this bug in the Encyclopedia

Natural Habitat

Found globally in temperate and tropical regions, typically in dark, dry, undisturbed places like woodpiles, garages, basements, and outdoor brush.

Diet & Feeding

Insects and other arthropods caught in their irregular, sticky cobwebs.

Behavior Patterns

Solitary, nocturnal spiders that spend most of their time hanging upside down in their webs. They are non-aggressive and generally only bite in defense when accidentally pressed against human skin.

Risks & Benefits

Risks: Females possess potent neurotoxic venom (latrotoxin) that causes painful muscle cramps, abdominal pain, and systemic symptoms, requiring medical attention. Benefits: Helps control populations of pest insects like flies, mosquitoes, and beetles.