Are Arizona tarantulas dangerous?

Arizona tarantulas are much less dangerous than most people think. Their venom is mild and they are not aggressive. They bite only as a last resort when physically grabbed. There are no documented human fatalities from tarantula bites in North America.

Why are tarantulas crossing roads in Arizona?

The late summer migration is mature males searching for mates. Female tarantulas stay in their burrows year-round, but males leave in August and September to wander in search of females, sometimes traveling miles.

What should I do if I find a tarantula in my house?

Place a large container over it, slide cardboard underneath, and release it outside. Do not use insecticide — it is unnecessary and the tarantula poses minimal risk.

How long do Arizona tarantulas live?

Female Arizona tarantulas can live 20-30 years. Males typically die within months of reaching sexual maturity, usually shortly after mating in their first adult season.

Arizona Tarantulas: Facts, Behavior & Safety Guide

Back to Blog8 min readPinal County, AZ

Arizona tarantulas are fascinating desert residents that most homeowners misunderstand. Learn the facts about their behavior, venom, and what to do if you find one.