Can you find this poisonous spider in the USA?
80289
I don't think it can be found in the USA. It is found in Chile, Peru, and Argentina, and can cause extreme illness when it bites. While this species doesn't live in the USA, reletives of it do. L. deserta and L. reclusa live in many states, and could be confused with the one you are talking about. While it hasn't been documented in the USA in any of the books I have, it is still possible.
363937
You need to get a specimen, along with a description of where you found it, they type of web it had, what the egg sack looked like if there was one, etc. The more information, the better. You can take the spider to a college, like someone said already. The only problem is many colleges don't have a arachnid department, and some don't care what kind of spider it is. You could also try a museum. Some colleges and museums have websites with information on places you can send the spider to for study. Unless you want a really specific type, try a field guide or the Internet. The only problem is that it is impossible to identify a spider based on looks, habitat, etc. You can come close, but you need to look at the reproductive organs to know for sure (something you probably don't want to do). Books are more reliable, but harder to use in many cases. Good luck.
360117
yes. there are 13 genera of wolf spiders and they occur all over america. most commonly in pennslyvania.
260282
Ultima Spider (Pacific Northwest) \nBrown Recluse (North America) \nBlack Widow Spider (North America) \nDaddy Long Leg (Worldwide) \nHobo Spider (North America)
347054
More imformation would deffinently help. It is pretty much impossible to tell from the info you gave. What do you mean octagon spider? Does that refer to the web? Some helpful info would be the color, size, and shape of the spider, the shape, size, and location of the web, and where you found the spider (state, country, ect.). Any other information would also help. \n\nAnother thing to consider is that all spiders (other than a small, rare family) have venom. It is unlikely that they are very harmful, but again, I would need more information to say that for sure. Try a field guide (library is a good place to look) and see if you can find what kind it is, then research that one. If you want, post some more info here, and I will try to find it.
95941
http://www.usq.edu.au/spider/info/guide.htm
481169
Click the link for a map showing the spider's location. Scroll down a bit to see the map. I hope this helps.
1047887
LOL, you're talking about a Daddy-long-legs. It's a spider. They usually cluster up in massive groups around water during the summer. Go to a rest area in a park sometimes. They'll be millions of them.\n\nBut never fear, they don't bite, though they are poisonous but their fangs are too fragile for humans. Boys usually scare girls with them in school- I did! \n\nWarning: Don't smash them. They stink when you do!
374134
Their bite may irritate a spot on your skin, but they are not poisonous- as long as you are referring to the true house spider Tegenaria gigantea/domestica.  So the place it bites may swell and itch or be sore and irritated, but nothing more than that.
301551
try this website\nhttp://www.wonderquest.com/frog-poison.htm
443012
In general, Huntsman spiders are not regarded as dangerous. There are however reports of members of the genus Neosparassus (formerly called Olios) giving bites that have caused prolonged pain, inflammation, headache, vomiting, and irregular pulse rate. It is unclear under what circumstances these spiders bite people, but it is known that female members of this family are quite brave in defending their egg sacs and their young.\n\nHuntsman spiders is a common name given to the family Sparassidae (formerly Heteropodidae). These spiders are found in Australia, New Zealand, South-east Asia, the Middle East in areas near the Mediterranean Sea, Florida and Hawaii in the US, and quite possibly in many other tropical and semi-tropical areas.
570996
If, on the other hand, you are hoping the spider will survive, I would suggest NOT doing it. Exotic species are a major cause of ecosystem damage and it is often hobbyists or individuals that are responsible for the introductions. I am sure it is also illegal. Governments are very ineffectual in dealing with this problem because it involves trade and lots of money, I hope that individual citizens can be more responsible.
449786
http://www.spiderzrule.com/\n\nhttp://www.everythingabout.net/articles/biology/animals/arthropods/arachnids/spiders/\n\nhttp://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7468.html\n\nhttp://www.giantspiders.com/\n\nhttp://tolweb.org/accessory/Jumping_spiders_of_America_North_of_Mexico?acc_id=66\n\nhttp://www.xs4all.nl/~ednieuw/Spiders/spidhome.htm
796504
Any spider with a "fat round body" as you put it, is most likely a garden spider family Aranaeidae. These are the very commonly spiders that build large round "typical" webs between bushes, trees and on people's front porches. They are very effective at catching and killing large flying insects, so let it be, it'll do more good than evil. None of these spiders are venomous to people, most (even the big ones) arent even able to deliver a bite, so no worries, hope this helps!
750933
Yes y am familiar with this kind of spider.y am from Romania and we have a lot of them around.it is called the metal spider.yes is poison es but it is very slow but he can camouflage itself very well.
1124532
There are black widow spiders in southern Ontario.  Most of Canada is too cold for them.  \n\nThe brown recluse spider whose bite is quite bad,  is also found in Canada.  Some kind of spider can be found pretty much everywhere in Canada.  \n\nI hope this helps.
1004600
I hate to be the one to break the news to you, but actually all spiders are poisonous.. even the harmless ones like daddy long legs... look at all the elderly ppl at Okinawa.. you have nothing to be afraid of.. I could find no reference to any species of highly poisonous spider for Okinawa