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The black widow is a shiny, jet-black spider with long legs and a red or orange hourglass-shaped marking on its underside. It is about an inch long, including the legs.
A black widow is a a relatively small black seemingly hairless spider with a telltale red hourglass shape marking on its abdomen
Brown Widow Spiders. When the subject of dangerous spiders comes up, the average person usually thinks about the black widow spider. Their shiny black body with a prominent red hourglass marking on the underside of the abdomen is an image that readily comes to mind. Source: Google.com
The top is shiny black. Some have a red hourglass on the underside, some are solid black. See the Related Link for pictures of black widow spiders.
It may be a Black Widow spider. They are very poisonous and it is probably best not to approach it if you are unsure of the species. Black spiders have a distinctive red "hourglass" shape on its back.
After mating, she usually kills and eats her mate. She's black and now has no 'spouse' so she's a black widow. But it is not any more or less usual for the black widow to eat her mate than it is for other spiders.
There are a number of spiders that show a variety of combinations of red and black. A Female Black Widow Spider is black, has a very round abdomen, and usually, but not always, has a telltale red hourglass shape on thethe underside of her abdomen, not her back. A female black widow is also very shiny--think patent leather. According to The National Audubon Society Field Guide to North American Insects & Spiders, the red marking may or may not be an hourglass shape; it can appear as two transverse red marks with black in between.According to http://www.termite.com/spider-identification.html#blackwidow, "The marking may range in color from yellowish orange to red and its shape may range from an hourglass to a dot."There are other black and red spiders--I'm looking at one right now--that are fuzzy and/or that display patterns different from those of the black widow. Also check out the following website for images of black widows and other spiders: http://bugguide.net/index.php?q=search&keys=black+widow&search=Search ------------------------- Long story short: Nope, the Black widow has a far more deadly venom.
A black widow. This spider is only a black widow if the entire spider is black, with a round-ball looking back-body, female variety if there is a red hourglass shape marking on the underside of the spider. From the top black widows are completely black.
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Poisonous spiders are many different colors. The Black Widow is as the name states black with a red hourglass on the bottom of the abdomen. The Brown Widow is a light to dark brown spider that looks like the Black Widow only with patterns of brown. It too has a red hourglass on the bottom of the abdomen. The Brown Recluse Spider too is brown like the name states with a darker brown 'violin' marking on the cephalothorax. The Hobo spider is light brown with a darker brown abdomen and a cream colored strip going down the center of the cephalothorax. Yellow Sack Spiders are usually yellow or creamy colored. The Brazilian Wandering Spider is a dark brown spider and usually have red hairs on their chelicerae.
A black widow is a deadly spider. A black widow also has a red hourglass-shaped mark on her abdomen.