Of the 39 species found in our database, the following include the color gray. It's important to note that spiders exhibit quite a bit of individual variation in color and pattern sometimes. Also, in order to grow, spiders must shed their exoskeleton in a process called "ecdysis" or "molting." After that process, a spider may permanently change in color, or may be temporarily discolored while the new exoskeleton is still fresh. Please keep those possibilities in mind when using the color filter.
Spider Species with the Color Gray
“Grass Spiders” are represented by 13 species collectively found throughout most of the U.S. and southern Canada, and northern Mexico. Like all members of the funnel weaver family Agelenidae, they spin dense, non-sticky, sheet-like webs with a funnel-like retreat where the spider hides.
This strikingly patterned species is a wandering hunter, often catching prey at night as well as during the day. They live close to the ground, under rocks and logs or in leaf litter, but are also occasionally found on (or in) buildings. Their movements are often ant-like, earning them the nickname “antmimic.”
“Longlegged Sac Spiders” are pale green, tan, or yellow nocturnal hunting spiders with very long front legs. Native to southern Europe, this spider has made its way into North America, where it is now fairly widespread. It is commonly found indoors, where it prowls walls and ceilings at night, looking for prey or mates.
These very large, sprawling arachnids are most often found on vertical surfaces: tree trunks, fence posts, bridge pilings, or the exterior walls of buildings, usually at night. There, they wait in ambush for large insects to come within striking distance. They do not spin webs to catch prey, but simply overpower their victims.
Native to Europe, and now widespread across the globe, this brightly colored spider is hard to miss. The long jaws and fangs are used to stab or turn over its prey: land isopods like sowbugs and roly-polies. This species does not spin a web, but hunts “on foot,” sometimes straying indoors.
This a hunting spider that does not spin a web to capture prey. It gets its common name from the black and white color pattern reminiscent of the garb worn by old-time clergymen. Common east of the Rocky Mountains, it sometimes strays indoors in the course of prowling for a meal or seeking a mate.
This species is the largest “wolf spider” in North America. Females reach 22-35 millimeters in body length. Their legspan is greater still. This spider may hunt actively at night, or wait in ambush at the mouth of its burrow, where it hides during the day. Adult males may wander indoors during mating season.
This species is often associated with human habitations, spreading its web from cracks and crevices on the exterior of homes, barns, and other structures. Males are frequently mistaken for recluse spiders (genus Loxosceles). The females may live up to eight years.
This species is native to the Old World tropics, but has ridden cargo to many other tropical and subtropical places around the globe. Look for these jumping spiders almost exclusively on the exterior walls of buildings here in the U.S. They are active hunters during the day and spend the night hidden away in crevices.
This species is relatively variable in color and sometimes pattern, but is most commonly seen sporting a rusty-red or golden orange color. The orb-shaped web is very large and is often constructed on buildings and other man-made structures, especially near outdoor lights. This species is most conspicuous in late summer and early fall.
This relatively large species lives in arid, desert ecosystems. They are nocturnal and like to prowl vertical surfaces like shrubs, trees, and the exterior walls of buildings. They do not spin a web to catch prey, but easily overpower most insects.
This species is abundant and widespread across the entire world, and is closely associated with buildings and other man-made structures. The teardrop-shaped, papery brown egg sacs can aid in their identification. The spider’s color and body shape cause them to be mistaken for “brown widows” on occasion.
The Longbodied Cellar Spider is thought to be native to Europe, but can be found globally after having traveled nearly everywhere as a stowaway in commerce. Their long, thin legs and elongated abdomen make them relatively easy to identify. Find them on ceilings, in basements, storage sheds, old wells, caves, and other dry locations with low light.
These jumping spiders are frequently seen patrolling the outer walls of buildings and other vertical surfaces, looking for bugs to pounce on. The mottled gray, black, and white scalloped pattern on their abdomen makes them one of the easier spiders to identify in the field.
This is a synanthropic European species that was accidentally introduced to some parts of North America. It runs in fast starts-and-stops and has a soft and fuzzy appearance, earning it the nickname “Mouse Spider.” They are mostly found in and around buildings where they stalk insects at night.
Today, this species occurs nearly everywhere people live, having spread with international commerce. The sheet-like webs of this spider are conspicuous in dark corners of barns, cellars, sheds, garages, cabins, and other man-made structures. Adult males frequently get caught in bathtubs or sinks at night.
This species is a wandering hunter that may be encountered indoors on occasion and is often referred to as the “Broadfaced Sac Spider.” Normally lives in leaf litter, under bark, or in curled leaves, where it hides by day and emerges at night to prowl for insects. Often confused with the “Woodlouse Hunter,” but lacks the long jaws of that species.