Bug Identifier
Common House Spider / Parasteatoda tepidariorum
Community identification

Common House Spider / Parasteatoda tepidariorum

Parasteatoda tepidariorum

Order & Family
Order: Araneae; Family: Theridiidae (Cobweb Spiders)
Size
Females 5-8 mm; males 3.8-4.7 mm
See this bug in the Encyclopedia

Natural Habitat

Commonly found in and around human dwellings, basements, sheds, and under eaves.

Diet & Feeding

Insects and other small invertebrates caught in their messy, tangled webs.

Behavior Patterns

Known for building irregular cobwebs in corners. They are generally shy, sedentary hunters that wait for prey to become entangled.

Risks & Benefits

Beneficial to ecosystems and homeowners by controlling pest insect populations; not medically significant to humans, though bites may cause minor localized irritation.