Bug Identifier
Triangulate Cobweb Spider
Community identification

Triangulate Cobweb Spider

Steatoda triangulosa

Order & Family
Order Araneae, Family Theridiidae
Size
Body length is typically 3 to 6 millimeters (about 1/8 to 1/4 inch).
See this bug in the Encyclopedia

Natural Habitat

Commonly found in dark corners of homes, basements, and man-made structures; also found in gardens or under rocks.

Diet & Feeding

Carnivorous predator of small arthropods, including ants, houseflies, ticks, and even other spiders.

Behavior Patterns

Constructs irregular, messy 'tangle' webs. It is a nocturnal hunter that often remains hidden in crevices during the day.

Risks & Benefits

Benefits ecosystems by controlling household pests. It is not considered dangerous to humans; while they possess venom, their bite is generally no more severe than a bee sting and they are very hesitant to bite.