Spiders in Colorado

Colorado has a lot many spider species of which most of them do not live for more than a year. However, the widow, tarantula and wolf species can survive a little longer. The brown recluse and the black widow are the deadliest spiders of the state. The tarantula and the yellow-sac, known for their mildly venomous effect on humans also thrive here.

Spiders in Colorado Identification Chart

Common Spiders in Colorado

Banded Garden (Argiope trifasciata)Carolina Wolf (Hogna carolinensis)Triangulate Cobweb (Steatoda triangulosa)

Largest Spiders in Colorado

Carolina Wolf (Hogna carolinensis)Banded Garden (Argiope trifasciata)

Highly Venomous Spiders

Cobweb (Theridiidae)

Southern Black Widow Size Southern Black Widow (Latrodectus mactans) - Did you know there's a spider called the southern black widow? It's mostly found in North America. It has family members like the western black widow and northern black widow, and they look a bit alike.… Continue Reading >

Northern Black Widow Spider Size Northern Black Widow (Latrodectus variolus) - The Northern Black Widow is a cool spider found mainly on the 'East Coast' of North America. It's a close relative to the southern and western black widows.… Continue Reading >

Western Black Widow Spider Western Black Widow (Latrodectus hesperus) - Have you ever heard about the Western Black Widow spider? It's a special spider found mostly in the western areas of North America. They are closely related to the northern black widow.… Continue Reading >

Sicariidae

Brown Recluse Image Brown Recluse Spider (Loxosceles reclusa) - The brown recluse spider is a special spider found mostly in the central and southern parts of the U.S. It's part of a small group of spiders in North America known for having strong venom, along with the Chilean recluse and black widow.… Continue Reading >

Cheiracanthiidae

Northern Yellow Sac Spider Northern Yellow Sac Spider (Cheiracanthium mildei) - Discover the fascinating world of the northern yellow sac spider, part of the cheiracanthiidae family. With a shared name across its genus, this spider stands out for unique reasons.… Continue Reading >

Less Venomous Spiders

Tarantula

Texas Brown Tarantula Size Texas Brown Tarantula (Aphonopelma hentzi) - The Texas brown tarantula has a few other names, like the Oklahoma brown tarantula and the Missouri tarantula. It's a spider you can often see in the southern areas of the USA.… Continue Reading >

Cobweb (Theridiidae)

Orb-Weavers (Araneidae)

Spotted Orb Weaver Spider Spotted Orb Weaver (Neoscona crucifera) - The spotted orb weaver is a tiny spider that lives in places like Florida, Maine, Arizona, and Minnesota. Part of the orb weavers family, they usually roam at night.… Continue Reading >

Larinioides Sclopetarius Gray Cross Spider (Larinioides sclopetarius) - Discover the world of the gray cross spider, part of the family of orb weavers. These unique spiders, although not fans of the company, often create their webs near one another.… Continue Reading >

Banded Garden Spider Banded Garden (Argiope trifasciata) - The banded garden spider is a common spider with two types: Argiope trifasciata deserticola and Argiope trifasciata kauaiensis. They prefer warm places and usually aren't around in cold winters because they don't like the chill.… Continue Reading >

Cat Face Spider Pictures Cat-Faced (Araneus gemmoides) - The cat-faced spider, known to some as the jewel spider, thrives during the nighttime. Part of the orb-weaver family, these spiders create spiral webs shaped like wheels.… Continue Reading >

Nursery Web (Pisauridae)

Striped Fishing Spider Size Striped Fishing (Dolomedes scriptus) - Discover the Striped Fishing Spider! This big spider is part of the Pisauridae family and lives in both the United States and Canada. With its striking patterns and unique habits, it has become a topic of interest.… Continue Reading >

Jumping (Salticidae)

Bold Jumping Spider Picture Bold Jumping (Phidippus audax) - Bold jumping spiders are super cool members of the Salticidae spider family. They get attention for their amazing jumps and colorful looks. Instead of using webs to catch food, they like to sneak up on bugs and jump on them!… Continue Reading >

Zebra Spider Size Zebra (Salticus scenicus) - Discover the fascinating world of the Zebra Spider, a creature from the northern hemisphere with stripes like a zebra. These lively spiders don't spin webs to catch their dinner.… Continue Reading >

Apache Jumping Spider Apache Jumping (Phidippus apacheanus) - Meet the Apache Jumping spider! This tiny jumper belongs to the Salticidae family and loves living in places like the United States, Cuba, and Mexico.… Continue Reading >

Running Crab (Philodromidae)

  • Ebo evansae

Wolf (Lycosidae)

South Carolina Wolf Spider Carolina Wolf (Hogna carolinensis) - The Carolina Wolf Spider, native to America, is just one of the many wolf spider species globally. Known for being quick hunters, they prefer the chase over waiting on webs. You'll often spot these speedy spiders during midsummer nights, particularly around June.… Continue Reading >

Hogna frondicola Hogna frondicola - Hogna frondicola is a type of wolf spider that lives in North America. They have a cool grey stripe right down the middle of their bodies. These spiders are more interesting than you might think!… Continue Reading >

  • Schizocosa mccooki
  • Tigrosa grandis
  • Geolycosa missouriensis

False Wolf (Zoropsidae)

  • Lauricius hooki

Ground (Gnaphosidae)

  • Mouse (Scotophaeus blackwalli)
  • Sergiolus montanus

Funnel Weaver (Agelenidae)

Barn Funnel Weaver Spider Barn Funnel Weaver (Tegenaria domestica) - Discover the Barn Funnel Weaving Spider, a spider known by various names worldwide, like the Domestic House Spider in Europe and the Common House Spider in the Pacific Northwest.… Continue Reading >

Hobo Spider Image Hobo (Eratigena agrestis) - The Hobo spider is different from the Australian funnel-web, even though they both belong to the funnel-web spider group. With various scientific names like Philoica agrestis and Tegenaria rhaetica, these spiders can be found in Europe, Central Asia, and North America.… Continue Reading >

Cellar (Pholcidae)

  • Pholcophora americana