Spiders in Colorado

This page provides an overview of the most common spiders in Colorado. Just click on any of the images or links to learn more about the spider.

If you have found a spider in Colorado that is not on our list, make sure to send us a picture via email to usaspiders@gmail.com and we will include it. If you cannot identify the spider, no problem. We will try our best and find out what species you’ve got.

Spiders in Colorado

Arigope Aurantia Spider

Argiope Aurantia – Black and Yellow Garden Spider

The Argiope Aurantia or black and yellow garden spider appears in every US state and in many other countries around ...
Arigope Trifasciata Spider

Argiope Trifasciata – Banded Garden Spider

The Argiope trifasciata or Banded Garden Spider is one of the most common species of the Argiope orb weaving spider ...
Cat-faced orb weaver spider

Araneus Gemmoides – Cat-Faced Spider or Jewel Spider

The Araneus Gemmoides is an orb weaver species that occurs in the Western United States. It is also known under ...
Parasteatoda Tepidariorum the common house spider

Parasteatoda tepidariorum – The Common House Spider

Parasteatoda tepidariorum, or the common house spider can be found in every US state. The spider is also distributed throughout ...
Daring Jumping Spider

Phidippus audax – Daring Jumping Spider

Phidippus audax, commonly known as the daring jumping spider is a jumping spider found throughout the USA. As their name ...
Pholcidae or Cellar Spider Photo

Pholcidae – Daddy Long-Legs or Cellar Spider

As strange as it sounds, the Pholcidae, or Cellar Spider is one of the most misunderstood spiders in the world ...
fishing spider dolomedes vittatus

Dolomedes – Fishing Spider

As the name suggests, the fishing spider is a semi-aquatic genus of spiders that are found all over the world ...
Misumena Flower Crab Spider

Misumena – Flower Crab Spider

The misumena, commonly called flower crab spider, is a genus of spiders that hunt their prey in or around flowers ...
Larinioides Cornutus - furrow orb weaver

Larinioides Cornutus – Furrow Spider

Larinioides Cornutus, commonly known as the furrow spider, is an orb weaver species that can be found throughout the Northern ...
Agelenopsis American grass spider

Agelenopsis – American Grass Spider

Agelenopsis, American grass spiders, are a genus of spiders that can be found around the world and in every US ...
Xysticus - Ground Crab Spider

Xysticus – Ground Crab Spider

Spiders of the Xysticus genus, also called ground crab spiders are a rather indistinct species. As all crab spiders, they ...
Clubiona - Leaf-Curling Sac Spider picture

Clubiona – Leaf-Curling Sac Spider

Spiders of the genus Clubiona, commonly called leaf-curling sac spiders, can be found throughout the world and in every US ...
pachygnatha orb weaver Picture

Pachygnatha

The Pachygnatha is technically part of the Orb Weaver family. However, it does not spin a web and is a ...
Red-Spotted ant mimic spider Castianeira descripta

Castianeira Descripta – Red-Spotted Ant Mimic Spider

Castianeira descripta, more commonly know as the red-spotted ant mimic spider gets its common name from the similar look and ...
Rabbit hutch spider

Steatoda Bipunctata – Rabbit Hutch Spider

The Steatoda bipunctata, commonly called rabbit hutch spider is a black spider found throughout the United States. It comes from ...
Steatoda triangulosa triangulate cobweb spider picture

Steatoda Triangulosa – Triangulate Cobweb Spider

The Steatoda triangulosa, commonly called the triangulate cobweb spider is a brown-black spider found throughout the US. It has an ...
Lycosidae wolf spider

Lycosidae – Wolf Spider

The Lycosidae, commonly called wolf spiders are a family of hunter spiders found throughout the United States and the rest ...
Cheiracanthium Mildei - Northern Yellow Sac Spider

Cheiracanthium Mildei – Northern Yellow Sac Spider

Cheiracanthium mildei, the northern yellow sac spider is one of the most common spiders in Northeastern America. However, it can ...
Salticus Scenicus - Zebra Spider

Salticus Scenicus – Zebra Spider

Salticus scenicus, the zebra spider, is a jumping spider that can be found in the entire Northern Hemisphere. As its ...
Neoscona crucifera Spotted Orbweaver Information

Neoscona crucifera – Spotted Orb Weaver

Neoscona crucifera, commonly known as the spotted orbweaver, is an orb weaver species indigenous to the Eastern part of North ...
Araneus Trifolium - Shamrock Spider Picture

Araneus Trifolium – Shamrock Spider

Araneus trifolium, the shamrock spider, is a widely distributed orb weaver that can come in various colors, mostly beige or ...
Philodromus - Running Crab Spider

Philodromus – Running Crab Spider

Philodromus, commonly called running crab spider, is a genus of crab spiders. Various species can be found throughout the entire ...
Ummidia trapdoor spider

Ummidia – Trap-Door Spider

Ummidia is a genus of spiders that can be found around the world. Among other genus, they are commonly called ...
Female Hobo Spider

Eratigena Agrestis – Hobo Spider

Eratigena agrestis, commonly know as the hobo spider, is a funnel web spider that can be found in the Pacific ...
Xysticus funestus deadly ground crab spider

Xysticus Funestus – Deadly Ground Crab Spider

Even though Xysticus funestus has a dangerously-sounding common name, the deadly ground crab spider, it is of absolutely no concern ...
Phidippus Regius - Regal Jumping Spider female grey

Phidippus Regius – Regal Jumping Spider

Phidippus regius, the regal jumping spider, is one of the largest species of the jumping spiders of the Phidippus genera ...
Herpyllus ecclesiasticus eastern parson spider hunting

Herpyllus Ecclesiasticus – Eastern Parson Spider

Herpyllus ecclesiasticus, The Eastern parson spider is one of the most commonly encountered hunter spiders in the United States. The ...
Texas brown tarantula on the street in texas size around 4 inches leg span

Aphonopelma Hentzi – Texas Brown Tarantula

Aphonopelma hentzi, the Texas brown tarantula is one of the largest species of spiders native to the Southern United States ...
Scytodes Thoracica - Spitting Spider

Scytodes Thoracica – Spitting Spider

The spitting spider, scientifically called Scytodaes thoracica, is a fascinating type of hunting spider that captures and paralyzes its prey ...
Neoscona arabesca Arabesque orbweaver in the United States

Neoscona Arabesca – Arabesque Orb Weaver

Neoscona arabesca, commonly known as the arabesque orbweaver, is one of the most common orbweaver species that can be found ...
Latrodectus hesperus Western black widow spider venomous spiders in the United States

Latrodectus Hersperus – Western Black Widow

Latrodectus hesperus, the Western black widow spider is one of the few medically significant venomous spiders in the United States ...
female acanthepeira stellata star bellied orb weaver

Acanthepeira Stellata – Starbellied Orb Weaver

Acanthepeira stellata, commonly called the starbellied orb weaver, is one of the most remarkable and memorable orb weaver spiders. Its ...
Steatoda Grossa - Cupboard Spider or False black widow

Steatoda Grossa – False Black Widow Spider

The Steatoda grossa, commonly called the false black widow spider or cupboard spider can be found throughout the United States ...
Western Spotted Orb Weaver – Neoscona Oaxacensis information

Western Spotted Orb Weaver – Neoscona Oaxacensis

The western spotted orb weaver, Neoscona oaxacensis, is a large orb weaving spider found in the Southwestern United States and ...
female red-backed jumping spider phidippus johnsoni black spider with short legs and red back

Phidippus Johnsoni – Red-Backed Jumping Spider

The red-backed jumping spider, Phidippus johnsoni, is found throughout the Western United States and Canada. The spider has a black ...
Scotophaeus Blackwalli Mouse Spider Brown and Gray Spider in Oregon and California

Scotophaeus Blackwalli – Mouse Spider

Scotophaeus blackwalli, the mouse spider is a ground spider that is common in Central and Northern Europe and the Western ...
Arrowhead orb weaver Verrucosa arenata information

Verrucosa Arenata – Arrowhead Spider

The arrow-head spider, Verrucosa arenata, is an orb-weaver spider found throughout the United States. Its common name arrowhead spider or ...
bowl and doily spider Frontinella pyramitela information

Frontinella Pyramitela – Bowl and Doily Spider

The bowl and doily spiders, known as Frontinella pyramitela, are a small species of spiders that belong to the family ...
Candy-striped spider Enoplognatha ovata information

Enoplognatha Ovata – Candy-Striped Spider

Candy-striped spider is not only one of the coolest names for a spider - it also looks great. This spider, ...
Steatoda borealis in United States

Steatoda borealis

Steatoda borealis, a spider species that belongs to the genus Steatoda is one of the members family of Theridiidae. In ...
Scroll to top