![]() It is more dangerous to children than adults. No other spider in Maryland looks like the black widow, nor is any as poisonous. Sometimes there may be small dull red marks on the top of the abdomen and at the tip. This red mark is easily seen because she hangs upside down in the web. Her appearance is as follows: body about ½ inch long, jet black with a bright red hourglass shape on the belly. She is confined to her web and is very clumsy when walking on a flat surface. The black widow female becomes mature in late summer and fall. They may come inside in objects such as boxes, flowerpots, baskets, or other items stored outdoors for a period of time, where they have established their irregular webs. These spiders are most often found in basement window wells, beneath lawn benches or porches, and in garages, tool sheds, old lumber piles, rock piles, trash piles, and water meters. The black widow is common in Maryland but is not often found indoors. Photo: Sturgis McKeever, Georgia Southern University, They sit waiting on flowers and leaves ready to attack prey that comes along.īlack widow spider (Latrodectus mactans). Photo: Frank Peairs, Colorado State University, Ĭrab spiders are bright white, yellow or reddish with their legs projecting from their sides giving them the appearance of a crab. Jumping spiders generally do not appear in large numbers and can be removed individually.Ĭrab spider. They may be marked with red or white dots. Jumping spiders are often black, quite hairy, and as large as 1/3 inch long. They are frequently found around windows in search of prey such as flies. ![]() Jumping spiders move in jumps or short, rapid runs. Photo: David Cappaert, ĭaring jumping spider (Phidippus audax). Exclusion is the best way to keep them outdoors. Wolf spiders come indoors most frequently in the fall and are usually found in basements. Some wolf spiders can be fairly large and have a frightening appearance. They do not attack humans even if they run across one’s hand or foot, but if handled or confined, they can give a sharp bite. The size varies from 1/4 inch to 1 1/2 inches in body length with a leg span of 3 inches. Their colors range from black and white to earth tones. Wolf spiders are active hunters (they can move fast) and do not construct webs. They have very good vision and hunt down prey day and night. Common spiders found in Maryland Wolf spiders
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