Tarantula
By Laura Allard and Dr. Frey
Biology and Identification
Tarantulas are typically desert-dwelling, large spiders that spend the majority of their time underground. There are approximately 4 species of Tarantula found within Utah, all typically found on the most Southern edges of the state, but sometimes found as far north as Cache Valley. They are rarely sighted by Utahns, as they are nocturnal, and only males tend to leave their burrows when in search of a mate.
Tarantulas are one of the most easily identifiable spiders, being typically 1 to 4 inches in length, they are some of the largest spiders known to science, and are rather “hairy” in appearance, which serves to help them detect vibrations from prey/predators and ward off predators by causing irritation to animals who get too close via their urticating hairs.
By Laura Allard and Dr. Frey
Biology and Identification
Tarantulas are typically desert-dwelling, large spiders that spend the majority of their time underground. There are approximately 4 species of Tarantula found within Utah, all typically found on the most Southern edges of the state, but sometimes found as far north as Cache Valley. They are rarely sighted by Utahns, as they are nocturnal, and only males tend to leave their burrows when in search of a mate.
Tarantulas are one of the most easily identifiable spiders, being typically 1 to 4 inches in length, they are some of the largest spiders known to science, and are rather “hairy” in appearance, which serves to help them detect vibrations from prey/predators and ward off predators by causing irritation to animals who get too close via their urticating hairs.
Many people fear tarantulas because of their large size, and intimidating fangs at the front of their mouths. Truthfully though, their bark is far worse than their bite. The venom from tarantulas is considered non-toxic to humans, mainly causing site irritation if bitten. In fact, most tarantulas are docile spiders, preferring to scare off an intruder than bite them.
Bite Protection and Management
***One important thing to note if bitten by a spider: capture/collect it for identification! Many spiders look very similar to one another. It is a good idea to collect the spider and have it identified by professionals for both proper healthcare of your bite, and for proper scientific knowledge of spider bites. There is still much to learn about spiders, including ones living close to us here in Utah!***
The easiest way to avoid spider bites is to check storage areas carefully and frequently. Most encounters with these spiders are in garages, basements, attics, storage facilities, pantries, workshops, etc. where there are many cluttered items left alone for long periods of time. Here are other tips to help protect yourself from bites, and keep spiders away:
Of course using a pest control spray service once or twice a year can also help keep spiders away. If you suspect you or a loved-one of susceptible immunity or age has been bitten by one of the venomous spiders mentioned, seek medical attention to asses the bite severity, and apply regular first aid measures such as washing the wound, use of ice to reduce swelling, and use of analgesics as appropriate.
References
Crawford, Rod (10 September 2010). "Myths about "Dangerous" Spiders". Burke Museum of Natural History & Culture.
https://www.nps.gov/zion/learn/nature/tarantulas.htm
***One important thing to note if bitten by a spider: capture/collect it for identification! Many spiders look very similar to one another. It is a good idea to collect the spider and have it identified by professionals for both proper healthcare of your bite, and for proper scientific knowledge of spider bites. There is still much to learn about spiders, including ones living close to us here in Utah!***
The easiest way to avoid spider bites is to check storage areas carefully and frequently. Most encounters with these spiders are in garages, basements, attics, storage facilities, pantries, workshops, etc. where there are many cluttered items left alone for long periods of time. Here are other tips to help protect yourself from bites, and keep spiders away:
- Do not handle firewood, hay/straw, or other debris where spiders might hide without use of gloves
- Do not walk barefoot in areas where spiders are likely to hide
- Make sure windows and door edges are properly sealed from the outside, including use of finely-strung window screens
- Clean/vacuum around windows, under furniture, and in corners of rooms often
Of course using a pest control spray service once or twice a year can also help keep spiders away. If you suspect you or a loved-one of susceptible immunity or age has been bitten by one of the venomous spiders mentioned, seek medical attention to asses the bite severity, and apply regular first aid measures such as washing the wound, use of ice to reduce swelling, and use of analgesics as appropriate.
References
Crawford, Rod (10 September 2010). "Myths about "Dangerous" Spiders". Burke Museum of Natural History & Culture.
https://www.nps.gov/zion/learn/nature/tarantulas.htm