Black Widow SpiderClassificationThe spider is a widely known organism with great influence on life. The black widow spider is just one of more than 30,000 types of spiders. Black Widow is a common name for the spider which is scientifically classified as K: Animalia, P: Arthropoda, C: Arachnida, O: Araneae, F: Theridiidae, G: Latrodectus, S: mactans. The species name mactans specifies the southern black widow spider. There are 31 different species of the genus Latrodectus. This genus is commonly called widow spiders. Other members of this genus include Hesperus, Varilous and Revivensis (Balaban 2005). The class to which spiders belong is Arachnida. The class Arachnida contains one of the defining traits of a spider, having eight legs. Other species included in this class include scorpions, twitches, and reapers. The order that defines spiders is Araneae which contains three suborders which are Mesothelae, Mygalomorphae and Araneomorphae. A specific characteristic of this order is that the bodies of these species are segmented into two distinct sections, the cephalothorax (anterior) and the abdomen (posterior). Finally, the genus of the South Black Widow spider is Latrodectus. This genus is famous for having spiders with venomous bites (Preston-Mafham 1984). Black Widow Spiderhttp://pubs.ext.vt.edu/444/444-422/444-422.htmlPhysiology (Muscles/skeletal/locomotion) The spider's body is relatively simple. Similar to the rest of Arthropoda species, the spider has an exoskeleton that protects it from its environment. This exoskeleton protects the segmented parts of the body (the cephalothorax and the abdomen) as well as the four pairs of legs (Foelix 1996). Because of this exoskeleton, the spider is in the middle of the paper......soft Spiders In Florida." / Insects / Search by industry / Agricultural industry / Home. Florida Department of Agriculture and Consumer Services , e Web. May 4, 2014. McCorkle, M. 2002. “Latrodectus mactans” (online), Animal Diversity Web, accessed May 4, 2014 at http://animaldiversity.ummz.umich.edu/accounts/Latrodectus_mactans/ . Szalay, Jessie. “Black Widows: Facts & Information,” LiveScience Network, September 24, 2013. Web, May 2, 2014. “Lethal Venom Used as Medicine.”. 2014. .