E-mail Contact Us Volunteer Make A Gift En Español Employees  
Health Library > Search Topics

Search Topic

Language Choice

Black Widow Spider

Black widow spider

Source: U.S. National Park Service. Available online: http://www.nps.gov

Black widow spiders (Latrodectus mactans) are found throughout the United States. Female black widows are long-legged, shiny, coal-black spiders with an orange, red, or yellow hourglass shape on their underside. Female black widows are usually about 1.5 in. (3.8 cm) across but may be smaller.

Current as ofSeptember 23, 2018

Author: Healthwise Staff
William H. Blahd, Jr., MD, FACEP - Emergency Medicine
Adam Husney, MD - Family Medicine
Kathleen Romito, MD - Family Medicine
H. Michael O'Connor, MD, MMEd, FRCPC - Emergency Medicine

Contact Us:

1-888-LGH-INFO (544-4636) Have a question?
Follow us online.