USA Spider Identification

Did you find a spider in the U.S and you would like to identify it? Then you are at the right place. This page will help you identify your spider. Simply read through the content on this site and answer the questions below, and you will hopefully identify your spider. If not, you can still reach out to us (more details below).

Are you dealing with a venomous spider?

Let’s first start off by eliminating the possibility that you are dealing with a potentially dangerous spider. There are only two medically significant spider genera in the United States: Widows and recluse spiders. Look at the following pictures below. Does your spider look like any of these? If yes or if you are unsure, click on the pictures to see more pictures and learn more about the venomous spiders and their range in the U.S.:

Loxosceles reclusa - brown recluse spider full body pictureAdult_Female_Black_WidowBrown_widow_spider_Latrodectus_geometricus_underside
A small brown spider in the Southern U.S. with thin long legs and a violin shape on its back may be a brown recluse.A small black spider with a round abdomen and red (hourglass-shaped) markings may be a black widow.A small brown spider with a round abdomen and red (hourglass-shaped) markings may be a brown widow.

If your spider doesn’t look like one of these – Great! Then you are most likely dealing with a harmless spider. Let’s identify it!

USA Spider Identification Tool

Please answer the questions below and you will get one or more possible results based on your answers. In a few rare cases, you might get no result. If this happens, you could try the spider identification tool over again or upload your spider pictures in the comment section below, so we can identify it for you. You are also welcome to leave a comment or feedback about the spider identificator (criticism is also welcome, we are working hard to improve).

In what state did you find the spider?
Which one of these looks most similar to your spider? You can select multiple answers
Focus more on the general appearance, not the exact colors and patterns. If more than one of the images look like your spider, select multiple answes. If the spider doesn't look like any of those, choose the question mark.
  • Juvenile spiders can have white or red markings on their back
  • Wolf spider
  • Nusery web spider
What size is the spider you found? Compared to a 1 Dollar coin
What size is the body (not leg span) in comparison with a one dollar coin (1 inch in diameter). Try to focus only on the body. Some spiders may seem huge with long legs but in reality they might have a small body.
Did you notice a spider web?
What is the primary color of the spider
Focus on the main colors of the body (not legs) of the spider. If you think there are more than one primary colors, select both. Do not look at dots, stripes or other markings in a secondary color. These will be asked in the next question. If you think the spider has more than one secondary colors, select both.
Secondary colors or markings
Does the spider have any characteristic markings in a color? Select this color (e.g. red dots on the body, yellow bands around the legs or body, etc.). You can select multiple colors.
What color pattern are the legs?
Nevermind the colors in the images. Select the pattern that comes closest to your spider.
Let's talk more about the legs. How long are they?
Compare the legth of the legs with the length of the body.
What shape is the spider? You can select multiple answers
Select the shape that comes closest to your spider. You can select multiple answers if you are uncertain.
Did you see any spinnerets on the abdomen of the spider?
Spinnerets are the silk-spinning organs of spiders. Some spiders have visible spinnerets on their back (two small spines).
Is the spider hairy?
Check Answers

Did the tool not help you to (correctly) identify your spider? Let us help you identify your spider!

Did you also look through the list of common spiders for your state on this site and didn’t find any information?

Simply upload a picture of your spider as a comment to this post below in the “Leave a reply” section at the bottom of the page – no sign-up or login necessary. Along with the photograph, please add the following information:

  1. Description of the spider (helps with the identification but is not mandatory)
  2. City and U.S. State where the spider was found
  3. Your name how you want to be credited on our website

By uploading a picture, you are giving us permission to use the picture on this site. Please only upload pictures you own the copyright to. Do not upload pictures taken from other web sources without proper crediting. Any pictures we use, we will place your name and city where it was found beneath the picture as the photographer.

When uploading your picture, you are required to enter your email address. Your email address will not be posted publicly. As soon as we have found an ID for your spider, you will be notified by email to the email address provided by you.

Consider a small donation

USAspiders has always been free and will stay free – so have the thousands of spider identifications we have made over the last years. We are always happy to spend a fair amount of our days during the summer months looking at reader images, identifying spiders. It’s what we love to do! If you can, and if you would like to support us, we would highly appreciate a small donation through Paypal. Any small amount is great! Thanks!

Taking the perfect picture of your spider

The more detail can be seen, the better. It is easiest for others or for us to identify your spider if the photograph is taken from the top of the spider. If both body parts, the colors, and the markings are visible, it will go a long way to getting the spider correctly identified. If you have a good camera and are not afraid to get a good close macro shot of its eye pattern, that can also help immensely. Some species can only be distinguished by a close look at their eye patterns.

Please upload the picture as its own file to the comment form below. Our upload form allows all standard image files up to a size of 15 MB. It is not possible to upload .zip files or more than one picture per upload. If you have more than one picture of your spider sighting, please upload them separately and copy the description text including the location along with it.

Backup: Email contact of

If for some reason, the upload form doesn’t work or you prefer that your spider picture is not published publicly, you can email us with the information to [email protected] and we will get back to you with an ID via email. However, we do prefer that you upload your picture in the comment form below as it will benefit all our readers.

USA Spider Identification

60 thoughts on “USA Spider Identification

  1. These were in the trees at steck park next to the snake river in Idaho. They were everywhere. Got home they are in the car and my sleeping bag! I wonder how many I ate in my sleep!?

  2. Second time I found this spider inside the house in central Florida. First one I caught started making a web very quickly while this one did not. It is very small and grey with banded legs and no obvious hairs.

  3. 1) Visually white bodied spider (~1/4 inch) with possible greenish cast. Uniform translucent leg color. Front leg pair > 1 inch, 2nd pair somewhat less long, 3rd pair shortest and held vertically under body, back pair longer than 3rd pair but shorter than 2nd pair. No obvious body or leg hairs. Possibly Enoplognatha ovata (Candy-striped Spider) lineata morph? Visually similar in shape/size to black widow type.

    2)Found indoors, Corpus Christi, Texas Sept. 14 dancing on computer screen.

    3) attribution to Chris Couteau

    1. Hi Brandy, due to the condition of the spider, I can’t make an ID off this photo. It does not appear to be one of the medically significant spiders found in the U.S.

  4. Found this little guy crawling above my bed area, unsure what species this spider just tried my best not to damage the body too much
    Loc Bayville, NJ
    Thank you

  5. Found this beauty in the corner of our Pima County, AZ house. Her(?) web is orb-shaped and spans about 2.5ft at the longest side of the triangle; leaves it up but hides in the rafters during the day. There’s a circular hole in the web. She’s got three vertical stripes on her belly (couldn’t get a good picture in the dark last night) and her body is less than an inch long, maybe around a half inch. Her top side is white and cream. I have more pictures I can send via email if that helps. Thank you!

  6. Found this beauty in the corner of our Pima County, AZ porch. Her(?) web is orb-shaped and spans about 2.5ft at the longest side of the triangle; leaves it up but hides in the rafters during the day. There’s a circular hole in the web. She’s got three vertical stripes on her belly (couldn’t get a good picture in the dark last night) and her body is less than an inch long, maybe around a half inch. Her top side is white and cream and her legs have black stripes. I have more pictures I can send via email if that helps. Thank you!

  7. This spider is tiny, about the size of a dime, legs and all. I am sure it is an adult though. I found a bunch of these little guys in the woods near my house, which is high on a mountain in North Idaho. We don’t have a ton of different spiders or insects because of the low temps and short summer. The web is messy and as far as I can tell, generally built near the ground.

  8. Was cleaning under furniture and this fellow hitched a ride out my hand. Some variety of ground crab spider maybe? Striking color combination, never seen it before.

    1. Hi Jean, yes, this is some type of crab spider. Possibly a ground crab spider of the genus Xysticus or a relative Thomisid spider.

  9. Found this guy in a tangled web between my basement bathroom sink and wall. Semi aggressive if my hand got too close. This was just a few days ago during September in northern Ohio. Thanks!

    1. Hi and thanks for sharing this great shot! Yes, this is a jumping spider of the genus Phidippus. I can’t ID the exact species off the image, though.

  10. Found this guy in my bed and have had hives (for the first time in my life) for 4 days since. Not sure if he bit me or not, not even sure if it’s related; it could have been something else.

    I’m in Milwaukee, Wisconsin.

    I would think he was a broadfaced sac spider, but all his legs are the same color and his thorax isn’t so bulky in the front. The Steatoda species looks pretty close too, in my inexperienced opinion, but the location is wrong from what I can tell. Would really appreciate an ID so I can eliminate a potential cause of this allergic reaction. Thank you.

    1. Hi Rochelle, this is most likely a male Steatoda sp. spider. Allergic reactions are always possible but generally, spider bites don’t happen unprovoked or without humans noticing.

    1. Given the image quality, I can’t make a positive ID of the spider. But based on the overall appearance and your location, I would guess this is a Titiotus species wandering spider. It’s definitely not a medically significant spider.

  11. This remarkable spider was found in my backyard near Loganville, Georgia this afternoon. I think it must be a Joro spider but I’m not sure. The yellow bands on the top side seemed to be luminescent. The web was three dimensional which made it difficult to focus my iPhone camera on the spider.

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