Also known as red-backed jumping spider and is one of the largest and most commonly encountered jumping spiders of western North America. It is not to be confused with the unrelated and highly venomous redback spider. When threatened, the redbacked jumping spider can inflict a painful bite in self-defense, but with no serious medical consequences.
Name: Spider, Johnson Jumping
Place first seen: Woodside Dr., Marin
Date spotted: 07 March, 2015
Name: Spider, Huntsman
Place first seen: La Ventana, Baja California Sur, Mexico
Date spotted: 07 January, 2015
Very scary looking fellow, but no danger to us humans, mercifully.
Name: Spider, Long-spinnered
Place first seen: Morrungulo, Mozambique
Date spotted: January 2012
Small, two creepy spikes at back.