![]() ![]() In the brown widow, it looks something like a finger of a hand projecting upward and the finger is holding a large black rectangular blotch. However, pay attention to the lateral diagonal stripes on the abdomen. The egg sac of the western black widow is either round or pointed at the top, yellow and smooth.Īt first these spiders may look very similar. ![]() The egg sac of the brown widow is round and yellow with many little silk spikes sticking out from its surface, looking like a big pollen grain or one of those harbor mines from World War II. This is the easiest way to tell a brown widow from a black widow. Please check the internet to identify orb weavers to reduce the chance of misidentification. Orb weavers have spines on thier legs, widow spiders have no spines. Many people send in orb weavers orb weavers of the genera Neoscona and Araneus. Below is a pictorial comparison of the two species with ways to differentiate between them. In order to master identifying them, many specimens need to be examined. There is TREMENDOUS variation for both of these species as they grow from babies to adults. Unfortunately, immatures of the native black widow spider, Latrodectus hesperus, also are tan with white stripes and are frequently mistaken for brown widows. ![]() The brown widow is a tan spider with a series of white stripes. In the western United States, accurate identification of this spider can be difficult. but in the first decade of the 21st century, it spread remarkably quickly, is now found from Texas to South Carolina and is well established in the urban areas of Los Angeles, San Diego and surrounding suburbs. For decades, it lived only in peninsular Florida in the U.S. The brown widow spider, Latrodectus geometricus, is not native to the United States. How to identify (and misidentify) Brown Widow ![]()
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