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Daddy Long Leg Spiders

Daddy Long Legs

What Are Daddy Long Legs?

In some regions, especially in North America, "daddy long legs" is used to describe a group of arachnids known as harvestmen or Opiliones. These creatures are not spiders but are often confused with them. Harvestmen have a distinctive long, slender body with eight long legs. They are arachnids but belong to a different order than spiders. Unlike spiders, they lack venom glands and fangs, so they are not capable of injecting venom or producing silk. Harvestmen are harmless to humans and primarily feed on small insects and decaying organic matter.

What Do Daddy Long Legs Look Like?

Daddy longlegs spiders, also known as harvestmen, are arachnids that are often mistaken for true spiders. They have distinct characteristics that set them apart:

  • Body Shape: Daddy longlegs have a small, round body that is segmented into two main parts: the cephalothorax (combined head and thorax) and the abdomen. Unlike true spiders, they lack a distinct waist or narrow connection between these body parts.
  • Legs: These spiders have exceptionally long and thin legs, which is how they get their common name. The legs can be up to several times the length of their body. Each leg typically has seven segments, giving them a spindly appearance.
  • Coloration: Daddy longlegs spiders come in various colors, including brown, gray, or even a pale yellowish hue. Their coloring helps them blend into their environment.
  • Eyes: Unlike most spiders, daddy longlegs have small, simple eyes arranged in a cluster on top of their cephalothorax. They lack the specialized vision of true spiders.
  • No Venom or Silk: Daddy longlegs do not possess venom glands or silk-producing spinnerets, which are characteristic features of true spiders. They are not considered dangerous to humans.
  • Antennae: Some species of daddy longlegs have long, whip-like antennae that extend from their heads.

While daddy longlegs are arachnids and may resemble spiders at a glance, they belong to a different order called Opiliones, whereas true spiders belong to the order Araneae. Daddy longlegs are not venomous and are primarily scavengers, feeding on small insects and detritus. They are often found in damp environments, such as forests, gardens, and basements, where they play a role in controlling insect populations.

Where Are Daddy Long Legs Found?

Daddy longlegs spiders, also known as harvestmen, can be found in a variety of habitats, primarily in temperate regions around the world. Here are some common places where you might encounter daddy longlegs spiders:

  • Wooded Areas: Daddy longlegs are often found in forests and wooded areas. They prefer the damp and shaded environment provided by leaf litter, fallen logs, and undergrowth.
  • Gardens and Parks: These spiders can also be spotted in gardens, parks, and other green spaces. They may hide among plants, shrubs, and in garden mulch.
  • Basements and Crawlspaces: In urban and suburban areas, daddy longlegs can sometimes be found in damp basements, crawlspaces, or dark corners of buildings. They are attracted to cool, moist environments.
  • Fields and Grasslands: In more open environments like fields and grasslands, daddy longlegs can be found in tall grasses and among rocks and debris.
  • Moist Coastal Areas: Some species of daddy longlegs are adapted to coastal habitats and can be found along the shorelines, particularly in areas with ample vegetation.
  • Caves and Crevices: In certain regions, daddy longlegs can be found in caves and rocky crevices, where they seek shelter and moisture.
  • Rainforests: In tropical rainforests, you may find a variety of harvestmen species inhabiting the forest floor, vegetation, and the lower levels of the canopy.
  • Human Structures: As mentioned earlier, daddy longlegs can occasionally find their way into buildings, especially if there is a source of moisture and darkness.

Daddy longlegs spiders are typically harmless to humans and are beneficial in natural ecosystems as they feed on small insects and decaying organic matter. If you want to observe them, look in these types of habitats, especially in the evening when they become more active. Keep in mind that they are sensitive to changes in their environment, so handle them with care if you decide to pick one up.

Daddy Long Legs Life Cycle

The life cycle of daddy longlegs spiders, scientifically known as harvestmen (Order: Opiliones), is relatively simple compared to some other arachnid species. It typically consists of several stages, including egg, nymph, and adult, without the complex metamorphosis seen in some insects. Here is a comprehensive overview of their life cycle:

Egg Stage:

Daddy longlegs reproduce sexually. The female lays a clutch of eggs, often in damp or sheltered locations, such as under rocks, logs, or in leaf litter. The eggs are usually attached to a substrate with a sticky substance produced by the female.

Nymph Stage:

After a period of incubation, the eggs hatch into nymphs. These nymphs closely resemble miniature versions of adult daddy longlegs but lack the full adult characteristics. Nymphs have fewer segments on their legs, and their bodies may be more proportionate compared to the long-legged appearance of adults. They undergo a series of molts as they grow, shedding their exoskeleton to accommodate their increasing size. Nymphs feed on small insects, tiny invertebrates, and detritus found in their environment.

Adult Stage:

Once the nymphs have undergone enough molts and reached maturity, they become adult daddy longlegs. Adult harvestmen have the characteristic long, slender legs and segmented body with a cephalothorax and abdomen. They continue to feed on small insects and decaying organic matter. Unlike some other arachnids, daddy longlegs do not produce silk or build webs for catching prey.


During the appropriate season, adult male and female daddy longlegs engage in courtship rituals, which may involve the male offering food or performing certain movements to attract the female. After successful courtship, mating occurs, and the female may lay another batch of eggs in a suitable location.


The lifespan of adult daddy longlegs can vary among species, but it is relatively short, typically ranging from a few months to a year or so, depending on environmental conditions and predation pressures.

Daddy longlegs are not true spiders (Order: Araneae), and their life cycle differs from that of spiders, which often include a more distinct larval stage and complex metamorphosis. Daddy longlegs primarily play roles in scavenging and helping to decompose organic matter in their ecosystems, contributing to nutrient recycling in various habitats.

Daddy Long Legs Diet

Daddy longlegs spiders, also known as harvestmen, are primarily scavengers and feed on a variety of small creatures and organic matter found in their environment. Their diet consists of the following:

  • Insects: Daddy longlegs spiders are opportunistic feeders and will consume small insects such as flies, ants, aphids, small beetles, and other tiny arthropods. They are not active hunters but will feed on immobilized or dead insects when they come across them.
  • Decaying Organic Matter: These spiders are valuable decomposers in ecosystems. They feed on decaying plant material, fallen leaves, dead insects, and detritus, helping to break down organic matter and recycle nutrients back into the ecosystem.
  • Small Invertebrates: In addition to insects, daddy longlegs may occasionally consume small invertebrates like mites, springtails, and other tiny creatures that are part of the microfauna in their habitat.
  • Fungi: Some harvestmen species have been observed feeding on fungi and mushrooms, which can be a source of nutrition, especially in damp environments.
  • Carrion: In some cases, daddy longlegs may scavenge on carrion, including dead animals, if they come across it. Their ability to feed on decaying organic matter makes them important contributors to nutrient recycling.

Daddy longlegs do not produce silk or build webs for trapping prey like true spiders do. Instead, they are passive foragers, relying on their opportunistic feeding habits and the availability of small prey and detritus in their environment. While they may occasionally capture live prey, their role in ecosystems is primarily that of detritivores and decomposers, helping to maintain ecological balance by breaking down and recycling organic material.

Learn more: What Do Daddy Long Legs Eat?

Are Daddy Long Legs Dangerous?

Daddy longlegs spiders, scientifically known as Pholcidae, are generally not considered dangerous to humans. They have several characteristics that make them relatively harmless:

  • Venom: Daddy longlegs possess venom, but it is very weak and not harmful to humans. Their fangs are too short to penetrate human skin, and their venom is primarily used to immobilize their prey, which includes small insects and other spiders.
  • Lack of Aggression: These spiders are not aggressive and rarely bite. When they do bite, it is usually in self-defense, and their fangs are not capable of causing any harm to humans.
  • Low Venom Quantity: Even if a daddy longlegs were to manage to deliver a bite, the tiny amount of venom they can inject would not cause any significant reaction in a human. Their venom is primarily tailored for immobilizing tiny prey, not for self-defense against larger animals like humans.
  • Delicate Anatomy: Daddy longlegs have fragile, thin legs and bodies, making them highly vulnerable to being squished or injured when handled. This further reduces the likelihood of them posing a threat.

Daddy longlegs spiders are not considered dangerous to humans in any practical sense. Their reputation as being venomous or harmful is largely a misconception. These spiders are more beneficial to humans by preying on other pests like flies and other insects.

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Why do I have an infestation of daddy long legs?

Daddy long legs, also known as harvestmen, are a common sight in many parts of the world. While they are generally harmless and even beneficial to have around, they can sometimes become an infestation in homes or other structures. Here are some reasons why you might have an infestation of daddy long legs:

  • Attracted to light: Daddy long legs are attracted to light, and may be drawn to your home or other structures if there are bright lights nearby. This can cause them to cluster around windows or other light sources, which can give the appearance of an infestation.
  • Seeking shelter: Daddy long legs are known for their ability to squeeze into tight spaces, and may seek shelter in your home or other structures during periods of extreme heat, cold, or drought. They are often found in basements, crawl spaces, and other areas with low light and moisture.
  • Food sources: Daddy long legs feed on decaying plant matter and small invertebrates, so if you have a lot of dead leaves or other organic matter around your home, this can attract them. They may also be attracted to areas with a lot of insects, as these are a food source for many species.
  • Structural issues: If there are cracks or gaps in your home's foundation or walls, this can provide an entry point for daddy long legs. They can also enter through open doors or windows, or through gaps around pipes or other openings.
  • Seasonal factors: In some cases, an infestation of daddy long legs may be the result of seasonal factors. For example, they may be more active during certain times of the year, or may be more likely to seek shelter indoors during periods of extreme weather.
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How do I get rid of daddy long legs?

Daddy long legs, also known as harvestmen, are generally harmless and beneficial to have around, as they help to control other insect populations. However, if you have an infestation of daddy long legs in your home or other structure, you may want to get rid of them. Here are some steps you can take to get rid of daddy long legs:

  • Identify the source: Before you can effectively get rid of daddy long legs, it is important to identify the source of the infestation. Check for any cracks or gaps in your home's foundation or walls, as well as any areas with a lot of decaying plant matter or other potential food sources.
  • Seal entry points: Once you have identified the source of the infestation, you can begin to seal any entry points that daddy long legs may be using to enter your home. This can include caulking gaps in walls or windows, weatherstripping doors, and filling in any cracks or gaps in your home's foundation.
  • Remove food sources: Daddy long legs feed on decaying plant matter and small invertebrates, so removing any potential food sources can help to discourage them from hanging around. This can include removing dead leaves and other organic matter from around your home, as well as reducing the number of insects in your home by using insect repellent or traps.
  • Use sticky traps: If you have a large infestation of daddy long legs, you may want to use sticky traps to capture them. These traps can be placed in areas where daddy long legs are known to congregate, such as near windows or other light sources.
  • Vacuum them up: Another way to get rid of daddy long legs is to vacuum them up. Use a vacuum cleaner with a hose attachment to suck them up, then dispose of them in a sealed plastic bag.

It is important to note that daddy long legs are not dangerous and are generally beneficial to have around, so it is best to avoid using chemical pesticides to get rid of them. If you have a large infestation or are unsure how to deal with it, you may want to consult a pest control professional to help you come up with an effective solution.

How can I prevent daddy long legs in the future?

Preventing daddy long legs, also known as harvestmen, from entering your home or other structures is the best way to avoid having an infestation in the future. Here are some steps you can take to prevent daddy long legs:

  • Seal entry points: Daddy long legs can enter your home through small cracks or gaps in walls, windows, and doors. Inspect your home for any potential entry points and seal them with caulk or weatherstripping.
  • Reduce moisture: Daddy long legs prefer moist environments. Fix any leaks in your home and ensure that there is proper ventilation in areas such as bathrooms and basements.
  • Remove debris: Daddy long legs feed on decaying plant matter and small invertebrates. Remove any debris or clutter from around your home to eliminate potential food sources.
  • Install screens: Install screens on windows and doors to prevent daddy long legs from entering your home.
  • Keep lights off: Daddy long legs are attracted to light. Keep outdoor lights off at night and close curtains or blinds at dusk to prevent them from being attracted to light sources inside your home.
  • Use natural repellents: Certain essential oils such as peppermint, lavender, and tea tree oil are known to repel insects. Spraying a solution of essential oils and water around your home can help to keep daddy long legs at bay.
  • Hire a professional: If you have a persistent problem with daddy long legs or other pests, consider hiring a professional pest control company to assess and treat the problem.

By taking these steps, you can greatly reduce the likelihood of a daddy long legs infestation in your home or other structures.

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