Long-Legged Sac Spider (Cheiracanthuim mildei)
Detailing the physical features, habits, territorial reach and other identifying qualities of the Long-Legged Sac Spider.
Updated: 1/23/2014; Authored By Staff Writer; Content ©www.InsectIdentification.org
The commonly seen Long-Legged Sac Spider is best admired from a distance. Their bites can be a bit painful.
This pale spider is typically found in homes and offices (on ceilings, in corners, under beds, etc). They build thin silk tent-like shelters in these corners and dark spaces. The Long-Legged Sac Spider is a fast runner because it is an ambush predator. The silk shelters are not for ensnaring prey, but for resting. Its non-lethal venomous bite is painful humans and can be slow to heal.
Its thorax is darker than its abdomen. The abdomen has a center line marking that starts thicker at the 'waist' and tapers off before getting halfway down the abdomen. They are somewhat translucent and can range from a dark yellow to almost pale green or white.