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List of Spiders in North America

Did you know that North America is home to more than 3,000 different spider species?

While some of them are venomous, the vast majority are harmless to humans. Spiders play an important role in our ecosystems by preying on insects.

Below are some of the species of spiders we have featured on this website.

To be as accurate as possible, our present knowledge of each spider’s range is derived from several scientific papers and internet spider submissions. It’s worth noting that spiders are not restricted by human-drawn borders.

Spiders may occasionally be spotted in locations outside of their normal range as a result of being intentionally or unintentionally carried by humans in automobiles, suitcases, freight, and other belongings.

Agelenopsis spp.
(Grass Spiders)

male-2302536 Adult Male

agelenopsis-spp-11-150x150-9640889

female-5949224 Adult Female

agelenopsis-spp-61-150x150-7758718

“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.

Amaurobius ferox
(Hacklemesh Weaver)

male-2302536 Adult Male

amaurobius-ferox-1-150x112-1386500

female-5949224 Adult Female

amaurobius-ferox-7-150x112-1132845

Native to Europe, it has become established in southeastern Canada and the eastern U.S., though is not limited to those regions. This robust spider is common in and around homes, but also lives under rocks, logs, in leaf litter, and other dark, humid places. Adult males are notorious for wandering in the spring.

Araneus diadematus
(Cross Orbweaver)

male-2302536 Adult Male

araneus-diadematus-19-99x150-4619091

female-5949224 Adult Female

araneus-diadematus-10-100x150-3679356

This spider is named for the pattern of white spots on the abdomen that form a cross in most specimens. Native to Europe, it was introduced to North America long ago. It spins the classic wheel-like orb web, usually sitting head-down in the hub (center), at night as well as during the day.

Argiope aurantia
(Black and Yellow Garden Spider)

male-2302536 Adult Male

argiope-aurantia-8-150x150-2043608

female-5949224 Adult Female

argiope-aurantia-4-150x150-3128696

Mature females are enormous, their bold black-and-yellow pattern adding to their intimidating appearance. Common in gardens, orchards, forest edges, old fields, and farms, they spin a classic round orb web which is usually decorated with a bold, zigzag band of silk called a stabilimentum.

Argiope trifasciata
(Banded Garden Spider)

male-2302536 Adult Male

argiope-trifasciata-4-150x150-7891224

female-5949224 Adult Female

argiope-trifasciata-5-150x150-6864734

Females are large, silvery spiders with legs banded in black and yellow. Look for this species in late summer and fall in fields, prairies, gardens, and meadows. The circular webs are built close to the ground amid tall grasses and weeds, often with a zigzag band of silk running through the center.

Castianeira longipalpa
(Ant Mimic Spider)

male-2302536 Adult Male

castianeira-longipalpa-1-150x112-9907893

female-5949224 Adult Female

castianeira-longipalpa-7-150x112-7586966

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.”

Cheiracanthium mildei
(Longlegged Sac Spider)

male-2302536 Adult Male

cheiracanthium-mildei-20-150x106-8437896

female-5949224 Adult Female

cheiracanthium-mildei-19-150x106-7768365

“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.

Dolomedes tenebrosus
(Dark Fishing Spider)

male-2302536 Adult Male

dolomedes-tenebrosus-22-150x150-9115384

female-5949224 Adult Female

dolomedes-tenebrosus-1-150x150-4876258

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.

Dolomedes triton
(Six-spotted Fishing Spider)

male-2302536 Adult Male

dolomedes-triton-25-150x121-7354581

female-5949224 Adult Female

dolomedes-triton-15-150x121-2881230

A large and strong hunting spider, this species is more closely associated with water than any of the other Nearctic fishing spiders. Find it among aquatic vegetation at the margins of streams and rivers, as well as floating around in lakes and residential pools. It eats aquatic insects, small fish, or even small amphibians!

Dysdera crocata
(Woodlouse Hunter)

male-2302536 Adult Male

dysdera-crocata-1-150x120-9563821

female-5949224 Adult Female

dysdera-crocata-15-150x120-1852106

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.

Eratigena agrestis
(Hobo Spider)

male-2302536 Adult Male

eratigena-agrestis-1-150x112-9479628

female-5949224 Adult Female

eratigena-agrestis-14-150x112-4785031

The “Hobo Spider” builds a funnel-shaped web on or near the ground, usually under stones and other low-lying debris. It is especially common near man-made structures here in North America, but is more of a field spider in its native Europe. Recent research has shown that it may not be a spider of medical concern as was once thought.

Eratigena atrica
(Giant House Spider)

male-2302536 Adult Male

eratigena-atrica-21-150x109-8998823

female-5949224 Adult Female

eratigena-atrica-11-150x109-7269933

The leg span of this large funnel weaver can reach 4 inches or more! Native to Europe, the “Giant House Spider” is now well-established in the Pacific Northwest. The webs can be found in dark corners of rooms, garages, sheds, under rocks and logs, etc. May be mistaken for a Hobo Spider on occasion.

Herpyllus ecclesiasticus
(Eastern Parson Spider)

male-2302536 Adult Male

herpyllus-ecclesiasticus-13-150x112-7381251

female-5949224 Adult Female

herpyllus-ecclesiasticus-15-150x112-1733737

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.

Hogna carolinensis
(Carolina Wolf Spider)

male-2302536 Adult Male

hogna-carolinensis-6-150x121-9788462

female-5949224 Adult Female

hogna-carolinensis-8-150x121-3602269

This species is the largest “wolf spider” in North America. Females reach 22-35 millimeters in body length. Their leg span 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.

Kukulcania hibernalis
(Southern House Spider)

male-2302536 Adult Male

kukulcania-hibernalis-2-150x120-7467596

female-5949224 Adult Female

kukulcania-hibernalis-5-150x120-4148824

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.

Latrodectus geometricus
(Brown Widow Spider)

male-2302536 Adult Male

latrodectus-geometricus-15-150x120-5190243

female-5949224 Adult Female

latrodectus-geometricus-17-150x120-9826598

The “Brown Widow” is probably native to Africa, but now found almost globally in subtropical regions. Its affinity for man-made structures has allowed it to spread via commerce. It can be common in yards and gardens, often in more exposed situations than other widow species. The spiky egg sacs are fairly diagnostic.

Latrodectus mactans
(Southern Black Widow)

male-2302536 Adult Male

latrodectus-mactans-9-150x120-8262254

female-5949224 Adult Female

latrodectus-mactans-1-150x120-9357039

Mature females are black with a red hourglass on the belly, easily visible as the spider hangs upside down in its web at night. By day, they hide. Immature females have pale stripes and spots, gradually losing those markings as they age. These are shy spiders, and if you avoid placing your hands where you can’t see, bites are unlikely.

Leucauge venusta
(Orchard Orbweaver)

male-2302536 Adult Male

leucauge-venusta-4-150x138-1278675

female-5949224 Adult Female

leucauge-venusta-5-150x140-9607557

“Orchard Orbweavers” are brilliantly colored spiders with shimmering silver-white, green, and gold on their abdomens. The orb-shaped web is nearly horizontal and the spider hangs underneath it. It is a common and widespread species in eastern North America, as well as parts of California and Arizona.

Loxosceles devia
(Texas Recluse Spider)

male-2302536 Adult Male

loxosceles-devia-1-150x112-4758992

female-5949224 Adult Female

loxosceles-devia-3-150x112-1794811

The “Texas Recluse Spider” is a relative of the famed Brown Recluse, but is found only in the southern third of Texas and adjacent Mexico. This spider normally lives under stones, in abandoned rodent burrows, and other natural refuges. The eye arrangement is an important diagnostic feature for this genus.

Loxosceles reclusa
(Brown Recluse)

male-2302536 Adult Male

loxosceles-reclusa-1-150x112-7508151

female-5949224 Adult Female

loxosceles-reclusa-2-150x112-3037803

The “Brown Recluse” is one of the few species in North America whose venom is considered medically significant. It is very timid and non-aggressive and simple precautions can be taken to avoid bites. The eye arrangement is an important diagnostic feature.

Menemerus bivittatus
(Gray Wall Jumper)

male-2302536 Adult Male

menemerus-bivittatus-2-150x150-4710599

female-5949224 Adult Female

menemerus-bivittatus-4-150x150-8060367

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.

Metaltella simoni
(Hacklemesh Weaver)

male-2302536 Adult Male

metaltella-simoni-14-120x150-3906766

female-5949224 Adult Female

metaltella-simoni-11-120x150-2912732

This species is native to Argentina, Uruguay, and Brazil but has been introduced to North America via commerce and trade. It is now well-established in the southeastern USA, as well as southern California. Being closely associated with humans, it may occasionally stray indoors.

Micrathena sagittata
(Arrowshaped Micrathena)

male-2302536 Adult Male

micrathena-sagittata-11-150x120-1659519

female-5949224 Adult Female

micrathena-sagittata-10-150x120-4683322

The “Arrowshaped Micrathena” is a unique little orbweaver found in the eastern U.S. west to Nebraska and Texas. The shape and coloration of the female make it easily identifiable. The orb web of this species is usually built in low bushes in open deciduous woodlands and along forest edges.

Misumena vatia
(Goldenrod Crab Spider)

male-2302536 Adult Male

misumena-vatia-13-150x112-7198917

female-5949224 Adult Female

misumena-vatia-15-150x112-7272814

This spider is an ambush hunter, lying patiently in wait on flowers for an insect to come within striking range. Adult females may be overall yellow or white, with the ability to change back and forth. This species can conquer surprisingly large prey like bees and butterflies.

Misumenoides formosipes
(Whitebanded Crab Spider)

male-2302536 Adult Male

misumenoides-formosipes-7-150x112-2414230

female-5949224 Adult Female

misumenoides-formosipes-1-150x112-7697590

This spider waits in ambush on flowers for visiting insects to come within range, seizing a victim in the embrace of its first two pairs of legs. Adult females can change from white to yellow and vice versa, though the change takes some time. Males are very small and strikingly different than females.

Neoscona crucifera
(Spotted Orbweaver)

male-2302536 Adult Male

neoscona-crucifera-25-120x150-8162968

female-5949224 Adult Female

neoscona-crucifera-26-120x150-8473219

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.

Olios giganteus
(Giant Crab Spider)

male-2302536 Adult Male

olios-giganteus-10-150x150-4839333

female-5949224 Adult Female

olios-giganteus-9-150x150-1590463

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.

Parasteatoda tepidariorum
(Common House Spider)

male-2302536 Adult Male

parasteatoda-tepidariorum-21-150x100-6138480

female-5949224 Adult Female

parasteatoda-tepidariorum-12-150x100-4169902

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.

Peucetia viridans
(Green Lynx Spider)

male-2302536 Adult Male

peucetia-viridans-2-117x150-7956278

female-5949224 Adult Female

peucetia-viridans-4-117x150-8993362

This is a relatively large, bright green spider with long, spiny legs and lightning fast movements. They are typically spotted in shrubs and bushes during the day, where they are sit-and-wait predators. Incredibly, this spider is capable of “spitting” venom in self-defense.

Phidippus audax
(Bold Jumper)

male-2302536 Adult Male

phidippus-audax-3-150x127-4471646

female-5949224 Adult Female

phidippus-audax-39-150x127-2086374

The “Bold Jumper” is one of the largest and most common species of jumping spider in North America. The spider is mostly black with a conspicuous white, orange, or red triangular patch in the center of its abdomen. Take a close look at this spider’s chelicerae (jaws), as they have a gorgeous, iridescent sheen to them and come in a variety of colors!

Pholcus phalangioides
(Longbodied Cellar Spider)

male-2302536 Adult Male

pholcus-phalangioides-16-150x112-8697932

female-5949224 Adult Female

pholcus-phalangioides-4-150x112-3633974

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.

Pisaurina mira
(Nursery Web Spider)

male-2302536 Adult Male

pisaurina-mira-16-150x150-2562249

female-5949224 Adult Female

pisaurina-mira-7-150x150-1635841

This is a large hunting spider that comes in a variety of color forms, sometimes making them more difficult to identify. It is a commonly seen species throughout the eastern United States and southeastern Canada. Females construct a nursery web and suspend their egg sac in it, guarding the babies that emerge.

Platycryptus undatus
(Tan Jumping Spider)

male-2302536 Adult Male

platycryptus-undatus-2-111x150-6002740

female-5949224 Adult Female

platycryptus-undatus-4-111x150-8438281

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.

Salticus scenicus
(Zebra Jumper)

male-2302536 Adult Male

salticus-scenicus-4-150x120-2950762

female-5949224 Adult Female

salticus-scenicus-3-150x120-3884615

The zebra-like color pattern makes this species one of the easier jumping spiders to identify in the field. It is most common around urban and suburban areas where it hunts by day on fences, rock walls, the exterior of buildings, and similar situations. Thought to be native to Europe, it is also now established in the U.S., southern Canada, and Asia.

Scotophaeus blackwalli
(Mouse Spider)

male-2302536 Adult Male

scotophaeus-blackwalli-2-150x110-2659114

female-5949224 Adult Female

scotophaeus-blackwalli-1-150x112-2914082

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.

Scytodes thoracica
(Spitting Spider)

male-2302536 Adult Male

scytodes-thoracica-4-150x113-6696663

female-5949224 Adult Female

scytodes-thoracica-1-150x113-6647810

This ornately-marked spider immobilizes its prey by spitting a mixture of silk, glue, and venom onto it. Watch for this slow-moving species leisurely walking the walls and ceilings at night. They are easily recognized by their dome-shaped carapace and thin, banded legs.

Steatoda grossa
(False Black Widow)

male-2302536 Adult Male

steatoda-grossa-6-112x150-6781618

female-5949224 Adult Female

steatoda-grossa-2-112x150-5985076

The “False Black Widow” belongs to the same family as true black widows, and is easily mistaken for its dangerous cousins. However, note that this spider does not have the red hourglass on the underside of the abdomen. It is common in buildings, but may live outdoors in sheltered spots such as wood piles, under bridges, or in rock walls.

Tegenaria domestica
(Barn Funnel Weaver)

male-2302536 Adult Male

tegenaria-domestica-2-104x150-9082054

female-5949224 Adult Female

tegenaria-domestica-6-104x150-4980179

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.

Trachelas tranquillus
(Broad-faced Sac Spider)

male-2302536 Adult Male

trachelas-tranquillus-2-150x119-4647298

female-5949224 Adult Female

trachelas-tranquillus-5-150x120-3181036

This species is a wandering hunter that may be encountered indoors on occasion and is often referred to as the “Broad Faced 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.

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