I have a real website now rather than a blog. Though I will keep this one open for a while, I will no longer keep this one up. My new site, "USA Spiders" is not fully completed but getting close. I made sure to get the Michigan page finished first. :o) Please use
USA Spiders in the future and if you find any problems with the site, please let me know so I can fix them.

Spiders verified to be here in Michigan are listed on the left sidebar. On the right sidebar, are the spiders of which pictures have been sent in to me.

The BROWN RECLUSE SPIDER! - Rick Vetter, the worlds top expert on the Brown recluse has published a book on the infamous Brown recluse spider. Learn the truth behind the worlds most misunderstood spider. (BUY IT HERE!)

My Disclaimer
My Knowledge and Why I am Not an Expert

Spider Questions and IDENTIFICATION Requests
My EMAIL can be found in the above link. I am always happy to help identify a spider, but please do us both a favor and read this before emailing me. Thanks.

Describing your Spider ..... Photographing your Spider

Your Fear of Spiders
........... Spiders in your Home?


Beyond Spider Dome - Where two spiders enter and one comes out.

Spiders and Drugs - Documentary video about the effects different drugs have on spiders.

Play with a computerized spider
- (flash)

Spider Diagram. - Basic anatomy of a spider.

Tuesday, August 31, 2010

Jumping Spider

Michigan Spiders - Jumping Spider-2
Michigan Spiders - Jumping Spider-2
Abdomen - Gray and white with a splotchy pattern. Somewhat hairy.

Cephalothorax - Approximately the same size as the abdomen, it has nearly the same pattern as the abdomen and two sets of its eyes on its back.

- The spider in the above pictures was near the size of a dime if I included the legs.

Bite Info - Not considered dangerous and are listed as No Risk. ....  However, the symptoms of a bite are not always something you want to deal with.  Most cases will have some swelling and itchiness that will fade. Sometimes they can cause aching muscles and on a rare occasion they can cause flu like symptoms with nausea and vomiting that can last a few days.

Other Notes - These spiders are very intelligent and quick to run or jump away from approaching danger. I found this one on the inside of a friends back door and trying to get it on a piece of paper so I can get pictures was near impossible. After some difficulty I finally chased it around to the outside of the door and knocked it off onto his steps where I got the pictures.

Genus - Marpissa muscosa

Monday, August 30, 2010

Running Crab Spider

Michigan Spiders - Running Crab Spider-1

Michigan Spiders - Running Crab Spider-2

Michigan Spiders - Running Crab Spider-3Notice how flat the Running Crab Spider spreads out to the counter top.

Michigan Spiders - Running Crab Spider-4

Abdomen - Oblong and Gray charcoal looking with two indented looking points.

Cephalothorax - Around half the size of the abdomen, it has a little patter with darker and lighter grays.

- The spider in the above pictures was near the size of a dime if I included the legs.

Bite Info - N/A

Other Notes - These spiders will stay in one position for a little while but are exceptionally quick when on the run.

Genus - Philodromus margaritatus

Monday, August 9, 2010

Orb Weaver

Also known as the common Garden Spider, Diadem Spider, and Cross Spider.

Michigan Spiders - Orb Weaver-1Good picture of the cross on its abdomen.

Michigan Spiders - Orb Weaver-2Face to face with the common Orb Weaver

Michigan Spiders - Orb Weaver-3A nice profile shot of this guy

Michigan Spiders - Orb Weaver-4Got him to pose for me to get a shot at his underside.

Abdomen - Round and slightly oblong with an array of design to the pattern and can range from light yellow to a gray in color. Most prominent on the abdomen is usually a white cross.

Cephalothorax - Around half the size of the abdomen, it is sometimes smooth with a hairier head area.

- I have seen adults around as large as a quarter, thought that is including its legs.

Bite Info - As ugly as this spider may seem, it is quite tame and harder than most to provoke to bite. When it does bite, it leaves nothing more than some irritation and is completely harmless to humans.

Other Notes - They tend to spin round webs, strung across an open area and will sit in the center (head down) and wait for their prey to fly into its web

Genus - Araneus diadematus

Saturday, August 7, 2010

Woodlouse Hunter

Michigan Spiders - Woodlouse Hunter-1

Michigan Spiders - Woodlouse Hunter-2
Abdomen - Oblong smooth but dull look to it. Usually a cream or tan color.

Cephalothorax - Near the same size as the Abdomen. Has a dark brick red color with large chelicerae (fangs).

Size - The adult bodies usually run around a half an inch with the females usually slightly larger. Including legs the run near an inch in size as adults.

Bite Info - Can cause a blistering rash, but otherwise is not considered dangerous.

Other Notes - This spider has the large fangs for penetrating the armor on beetles, so whether the venom is considered dangerous or not, likely the bite will hurt, so I would not suggest handling them.

Genus - Dysdera crocata