Name: Spider, Johnson Jumping
Place first seen: Woodside Dr., Marin
Date spotted: 07 March, 2015
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.