Arachnids in Colorado

Frequently Asked Questions

What are the 10 most common arachnids in Colorado?

The 10 most common arachnids in Colorado are:

1. Bold Jumping Spider (Phidippus audax)
2. Western Black Widow (Latrodectus hesperus)
3. Apache Jumping Spider (Phidippus apacheanus)
4. Zebra Jumping Spider (Salticus scenicus)
5. European Harvestman (Phalangium opilio)
6. Woodlouse Spider (Dysdera crocata)
7. Texas Brown Tarantula (Aphonopelma hentzi)
8. Asiatic Wall Jumping Spider (Attulus fasciger)
9. Goldenrod Crab Spider (Misumena vatia)
10. Habronattus festus

What is the most observed arachnid in Colorado?

The most observed arachnid in Colorado is Bold Jumping Spider (Phidippus audax), with 5,038 recorded observations.

What are the most common invasive arachnids in Colorado?

Some of the most commonly observed invasive arachnids in Colorado include:

1. European Harvestman (Phalangium opilio)
2. Hobo Spider (Eratigena agrestis)
3. Common candy-striped spider (Enoplognatha ovata)

What are the most common native arachnids in Colorado?

Some of the most commonly observed native arachnids in Colorado include:

1. Western Black Widow (Latrodectus hesperus)
2. Apache Jumping Spider (Phidippus apacheanus)
3. Pelegrina aeneola
4. Peppered Jumping Spider (Pelegrina galathea)
5. Attinella dorsata