Ground Spiders
Gnaphosidae
Identification
- many different kinds; typically earthtone coloration
- found crawling around (not within a web)
- two large spinneretts sticking out the rear of the abdomen are even in size throughout their length (rather than tapering toward the end)
Nesting Habits
- found in leaf litter, grasses, ornamental plantings, areas around buildings
- make web chambers in which they lay eggs
- are active hunters that wander in search of food
Diet
- insects and other spiders
Significance
- nuisance when indoors
- not known to be a health hazard
- beneficial
IPM Recommendations
- Minimize nesting habitat around property.
- Seal exterior cracks and crevices.
- Install tight-fitting door sweeps at the base of all exterior doors.
- Vacuum individuals that enter buildings.
- Step on or smash individual spiders that enter.
- Catch and release (with a glass jar) spiders found indoors.
- Change exterior lighting to sodium vapor bulbs.
- Use pest monitors to capture invading spiders, especially between August and October.