The Brown Widow Spider (Latrodectus geometricus) is a venomous spider closely related to the Black Widow Spider. Although it belongs to the same genus, its venom is generally considered less potent. Brown widows are increasingly common in warm regions and urban environments.
Quick Facts
- Family: Theridiidae
- Habitat: Outdoor structures, fences, garages
- Diet: Insects and small arthropods
- Status: Venomous but rarely dangerous
Identification
Brown widow spiders are tan to gray with mottled patterns. The underside of the abdomen usually displays an orange or yellow hourglass marking.
The egg sacs are distinctive, appearing spiky or tufted compared to the smooth egg sacs of black widows.
Distribution
Brown widow spiders occur in warm climates including parts of the southern United States, California, Florida, and Texas.
Life Cycle
Females produce egg sacs that contain dozens of spiderlings. The young disperse after hatching and gradually mature through several molts.
Pest Status
Although venomous, brown widow bites are rare and usually less severe than bites from black widows.
Prevention
- Reduce clutter around buildings
- Wear gloves when handling outdoor equipment
- Seal gaps around doors and windows
Control
Removing webs and reducing hiding spots around structures usually prevents infestations.