U.S. Black Widow Spider, poisonous and dangerous. (also upside-down) << This spider actually seems to be a Red Back spider with the markings on it's back. They're easily confused with Black Widows due to the extremely similar coloring. ~Riley Arachnid
Spiders & Arachnids From Around the World - Entymology Poster, 24x36
EuroGraphics Spiders and Arachnids Puzzle. Featuring over 25 arachnids species, including scorpion, Mexican red-leg and black widow, this educative puzzle will bring a lot of fun and a great learning experience about these fascinating creepy critters.
Mexican Fireleg ~ Although not particularly defensive, this species of Tarantula can have a nervous temperament. ~ Miks' Pics "Arachnids and Insects l" board @ http://www.pinterest.com/msmgish/arachnids-and-insects-l/