Daddy Long-Legs in Phoenix, AZ
Opiliones (order)
Daddy long-legs are common but harmless — here's what they are, where they hide, and when it's time to call in the pros.
Notes: From a Phoenix, AZ Exterminator
Appearance
"Daddy long-legs" is a common name applied to two very different creatures: cellar spiders (true spiders with small bodies and extremely long, thin legs) and harvestmen (non-spider arachnids with a single oval body segment and no venom glands at all).
Harborage
They favor dark, humid, undisturbed corners — garages, crawl spaces, window wells, and clutter in sheds and storage areas throughout the West Valley.
Are They Dangerous?
No. Harvestmen have no venom glands whatsoever, and cellar spiders pose no meaningful threat to humans — the "most venomous spider" myth associated with them has been thoroughly debunked. They're considered a nuisance pest at most.
Treatment
While harmless, large populations are still a nuisance and a sign of other insect activity nearby. Antidote Pest Solutions' routine pest control removes webs and reduces the insects they feed on. Talk to one of Antidote Pest's Service Pro's for year-round coverage.
Prevention Tips
Reduce clutter in garages, basements, and storage areas
Seal gaps around the foundation, windows, and doors
Remove leaf litter, woodpiles, and debris close to the home
Keep humidity low in crawl spaces and basements
Vacuum corners, ceilings, and window wells regularly
Behavioral Notes
Despite the popular myth, daddy long-legs (harvestmen) aren't spiders at all — they're a separate arachnid order, and the widely repeated claim about extreme venom is false; they have no venom glands or fangs.;
They can voluntarily detach a leg to escape a predator, and the severed leg will keep twitching for several minutes afterward, distracting the threat.
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