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Latrodectus apicalis, known as the Galapagos Black Widow, is a venomous spider indigenous to Central and South America. Like most black widows they have a red hourglass and are sometimes hard to find. The Galapagos Black Widow is found in the Galapagos Islands.
- Horwell, David; Pete Oxford (2011). Galápagos Wildlife. Bradt Travel Guides. ISBN 9781841623603. http://books.google.com/books?id=YfrvysRy30YC&dq=%22Latrodectus+apicalis%22+Galapagos&source=gbs_navlinks_s.
- Pamphlets on Biology: Kofoid collection, Volume 3018. 1890. http://books.google.com/books?id=xi0XAQAAIAAJ&dq=%22Latrodectus+apicalis%22+Galapagos&source=gbs_navlinks_s.