It doesn't. It has the red hour glass on its belly.
The black widow spider.
AnswerIf it is predominately black and has the red hourglass on the abdomen, it is a black widow. It is my understanding that the stripes denote either a male or a younger female. I have also seen black widows with red dots on the back. The black widow with spots on its back usually has thirteen and it is called a European Black Widow.
No. The black widow is a shiny black with a bright red hour glass shape on its back.
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.
An hourglass
well if has this mar on it's back that i red and looks like an hourglass and it is black
The spiders you are referring to are black widows, known for their distinctive black coloration with a red hourglass shape on their underside. They are venomous and found in various parts of the world.
The black spider that resembles a black widow without the red hourglass marking is likely the false black widow spider (Steatoda grossa or Steatoda nobilis). They are similar in appearance to black widows but lack the distinctive red hourglass marking. These spiders are not as venomous as black widows but can still deliver a painful bite.
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 spider you are referring to is likely the black widow spider. The female black widow has a distinct red hourglass shape or white crescent on its abdomen. They are known for their venomous bite, so caution should be taken when encountering them.
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.
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.