A gray spider graced my presence on the back of the house. It looks brown in the photo. It's adorable-- I don't know what it is,my mom said it was poisonous. *shrugs* Phidippus audax female Description P. audax is a black, hairy spider measuring 8 to 19 millimeters for the females and 6 to 13 millimeters for the males. There is a pattern of white, yellow, or orange spots on the top of the abdomen (orange on the younger spiders), and the chelicerae frequently have an iridescent green hue. The males have “eyebrows,” or tufts of hairs over the eyes. Occasionally, white bands extend back from the rear pair of eyes. The eyes located at the center of the front end of the cephalothorax are by far the largest and aid the spiders in capturing prey.