Daddy Long Leg Spider Identification and Behavior

Daddy Long Leg Spider/Harvestmen

Actual Size: Ranges in body size from about 1/16 to 1/4 inch. Their long, thin legs, however, can span up to 2 inches or more in length.

Characteristics: Gray, brown, or tan, with a small, rounded body and extremely long, slender legs.

Legs: 8

Habitat: In summer, they often gather on the shady sides of buildings, hiding under eaves and in crawl spaces. By fall, they cluster in large, wiggling groups on building exteriors.

Habits:

Lack of venom glands, silk production, and the distinct two-part body of spiders.

To deter predators they can release a foul-smelling fluid.

Their long legs help them feel vibrations and detect predators.

Contrary to popular myths, they do not have venom and are completely harmless to humans.

Daddy Long Leg Spiders in Florida

Commonly referred to as daddy longlegs, harvestmen are frequently confused with spiders, though they aren’t true spiders. They earned the name “harvestmen” due to their visibility during late summer and fall at harvest. This seasonal appearance is often linked to agricultural practices, as they become more noticeable when crops are being gathered. Without silk glands, they are unable to spin webs. With their distinctive long, slender legs and small oval bodies, they sometimes gather in large numbers near buildings but are harmless to people, animals, buildings, and plants.

Daddy Long Leg Spider Habitat

Harvestmen thrive in humid environments, often living in forests and caves, where they climb on rocks and vegetation. During warmer months, they are commonly found on shady sides of buildings, under eaves, in crawl spaces, and on trees in both rural and urban areas. In fall, harvestmen form large groups or swarms along building walls, moving together in a wiggling mass, which can be unsettling for both predators and homeowners. This behavior not only helps them avoid predators but also facilitates mating and reproduction.

Daddy Long Leg Spider Behaviors, Threats, or Dangers

Harvestmen are helpful garden predators, feeding on aphids, spiders, and various other pests. They don’t bite, produce venom, or pose any threat to humans. When disturbed or threatened, however, they release a strong odor to deter predators. Rarely found indoors and primarily active at night, harvestmen are often difficult to spot. Their role as natural pest controllers makes them valuable allies for gardeners.

Should you find yourself overwhelmed by harvestmen spiders on your property, consider contacting your local spider exterminators for support.