This is a group of macro pictures of a wolf spider with an egg sack. I took these pictures with a Canon 5d Mark II camera. I used an MP-E 65mm lens. Wolf spiders are not really aggressive but will bite if harassed. They are not dangerous to humans but will cause a painful bite.
I found this mother carrying her egg sack on the ground. I took a few pphotographs and then released her on her way. The Canon MP-E 65mm 2.8 1x-5x macro lens is one of my favorite lenses. I get some really cool macro photography shots from it.
I am not sure what the red part in the above photograph is. It may be a venom gland.
These arachnids are quite common in Texas. I found a few of these each week it seems. During the warmer months I find them crawling through the grass.