Ground Spider (likely a species of Gnaphosidae)
Scientific Name: Gnaphosidae (family level, specific genus/species cannot be determined from the image)
Order & Family: Order: Araneae, Family: Gnaphosidae
Size: Typically 3 mm to 15 mm (0.1 to 0.6 inches) in body length, depending on the species.
Natural Habitat
Ground spiders are typically found on the ground, under rocks, logs, leaf litter, and in crevices. They often enter homes, especially during colder months or prolonged dry spells, seeking shelter.
Diet & Feeding
Primarily carnivorous, feeding on a wide variety of other insects and small arthropods.
Behavior Patterns
Ground spiders are nocturnal hunters and do not build webs for catching prey; instead, they actively stalk and pounce on their prey. They are fast-moving. Some species may utilize silk for creating retreat sacs, egg sacs, or for ballooning (dispersal by wind).
Risks & Benefits
Potential risks: While most ground spiders are not considered dangerous to humans, their bites can occur if they feel threatened. The bite is usually mild, resulting in localized pain, redness, and swelling, similar to a bee sting. They are not considered medically significant. Potential benefits: They act as natural pest control, preying on other insects that might be considered nuisances or pests.
Identified on: 7/29/2025