COVID-19: Learn more about testing and what to expect when you visit any LMH Health location.
COVID Vaccination: Frequently Asked Questions as well as what you need to know today. Learn more
View All Services
Find a New Primary Care Provider
Search by Specialty
View All Locations
Discover classes, events, tours, and groups that fit your interests.
Home > Be Healthy > Health Library > 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 of:
October 19, 2020
Author: Healthwise StaffMedical Review: William H. Blahd Jr. MD, FACEP - Emergency MedicineAdam Husney MD - Family MedicineKathleen Romito MD - Family MedicineH. Michael O'Connor MD - Emergency Medicine
Current as of: October 19, 2020
Author: Healthwise Staff
Medical Review:William H. Blahd Jr. MD, FACEP - Emergency Medicine & Adam Husney MD - Family Medicine & Kathleen Romito MD - Family Medicine & H. Michael O'Connor MD - Emergency Medicine
To learn more about Healthwise, visit Healthwise.org.
© 1995-2021 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.