
Community identification
Brown widow spider egg sac
Latrodectus geometricus
- Order & Family
- Araneae: Theridiidae
- Size
- 8 mm to 12 mm in diameter (egg sac)
Natural Habitat
Commonly found in sheltered areas such as porch furniture, eaves, under handrails, and in cluttered garages or sheds.
Diet & Feeding
Spiderlings and adults eat small insects like flies, mosquitoes, and beetles.
Behavior Patterns
The egg sac is distinctively 'spiky' with silk tufts. One sac can contain 120-150 eggs. The spiders are generally timid and prefer to retreat.
Risks & Benefits
While venomous, they are less aggressive and their bite is typically less severe than a black widow's; they benefit the ecosystem by controlling pest insect populations.