Salticidae, the jumping types of these arachnids, have hairy bodies & feed on insects & on others of their kind
These structures are the silk-spinning organs and are often used for 
spider ... All other venomous Maryland spiders either have too little venom to 
affect ... Crab spiders are viewed as beneficial to people as they tend to eat many 
insect... [DOC] [TLE] Photo Gallery - Arthropod Museum, Dept.