Does Daddy Long Legs Make Webs? The Truth Revealed
Contrary to popular belief, daddy long legs do not make webs. The term “daddy long legs” is commonly used to refer to three distinct groups of arthropods, and only one makes webs, while the other two do not create webs at all.
Understanding the Confusion: Daddy Long Legs Demystified
The name “daddy long legs” is applied to three different creatures: harvestmen, cellar spiders, and crane flies. This shared nickname leads to considerable confusion about whether “daddy long legs” make webs. To understand why, it’s crucial to distinguish between these vastly different animals.
- Harvestmen (Opiliones): These are arachnids but not spiders. They possess one fused body section and are primarily scavengers.
- Cellar Spiders (Pholcidae): These are true spiders and do spin webs. They are often found in dark, undisturbed areas like cellars and basements.
- Crane Flies (Tipulidae): These are true flies and are insects rather than arachnids. Their larvae typically live in moist environments.
Therefore, the answer to the question “Does Daddy Long Legs Make Webs?” hinges entirely on which creature is being referred to.
Harvestmen: Web-Free Wanderers
Harvestmen are often mistaken for spiders, but they lack a defined waist and possess only one body section. More importantly, they do not produce silk and therefore cannot spin webs. Their lifestyle revolves around scavenging and preying on small insects and decaying matter, which they find by wandering on the ground or climbing on vegetation. They navigate using their long legs, which are equipped with sensory organs.
Cellar Spiders: The Web-Spinning Culprits
Cellar spiders are the true web builders in the “daddy long legs” family. They construct irregular, tangled webs in dark, damp places, such as cellars, basements, and crawl spaces. These webs serve as both traps for unsuspecting prey and shelters for the spiders themselves. The spiders hang upside down in their webs, waiting for vibrations that signal the arrival of a meal.
Crane Flies: Air Borne And Web Adverse
Crane flies, also dubbed “daddy long legs,” are entirely unrelated to spiders. As insects, they do not produce silk and are not capable of spinning webs. They spend their adult lives flying in search of mates and laying eggs. Their larvae, often called leatherjackets, live in soil or aquatic environments, feeding on plant roots and decaying organic matter. These creatures have nothing to do with web building.
Differentiating Between Harvestmen and Cellar Spiders
Here is a table highlighting the key differences between the two arachnids commonly called “daddy long legs”:
| Feature | Harvestmen (Opiliones) | Cellar Spiders (Pholcidae) |
|---|---|---|
| Body Segments | One fused body section | Two distinct body sections (cephalothorax and abdomen) |
| Silk Production | No silk glands; no webs | Silk glands present; builds webs |
| Eyes | Two eyes, typically on a tubercle | Six or eight eyes |
| Legs | Very long and thin; easily detached | Very long and thin, but less easily detached |
| Diet | Scavengers; eat decaying matter & small insects | Predators; eat insects caught in webs |
| Habitat | Varied; forests, grasslands, gardens | Dark, damp places; cellars, basements |
The Importance of Accurate Identification
The confusion surrounding “Does Daddy Long Legs Make Webs?” underscores the importance of accurate identification. Knowing which creature you are observing allows you to understand its behavior, habitat, and ecological role. Misinformation can lead to unnecessary fear or harmful actions towards these fascinating creatures.
Dispelling the Venom Myth
Another common misconception is that all “daddy long legs” are highly venomous but unable to bite humans. This is entirely false. Harvestmen lack venom glands altogether. Cellar spiders do possess venom, but their fangs are typically too small and weak to penetrate human skin. Therefore, the “daddy long legs” pose virtually no threat to humans.
Frequently Asked Questions (FAQs)
Are all “daddy long legs” spiders?
No. As explained above, the term refers to three different kinds of animals, only one of which is a spider (cellar spiders). The others are harvestmen (arachnids but not spiders) and crane flies (insects).
What do harvestmen eat?
Harvestmen are primarily scavengers and opportunistic predators. They consume decaying matter, small insects, fungi, and even bird droppings. Their diet is quite varied and depends on what is available in their environment.
How do cellar spiders capture their prey?
Cellar spiders rely on their irregular, tangled webs to trap insects. When an insect becomes entangled in the web, the vibrations alert the spider, which quickly wraps the prey in silk and delivers a venomous bite.
Are cellar spider webs harmful to humans?
Cellar spider webs are not harmful to humans. They are simply a nuisance to some people who find them unsightly. They do not pose any health risks.
Why do harvestmen detach their legs?
Harvestmen detach their legs as a defense mechanism. When threatened, they can voluntarily shed a leg, which continues to twitch and distract the predator, allowing the harvestman to escape.
Do crane flies bite?
No, adult crane flies do not bite. They lack the necessary mouthparts to pierce skin. Their larvae feed on plant roots and decaying matter.
What is the ecological role of harvestmen?
Harvestmen play an important role as decomposers and predators. They help to break down organic matter and control populations of small insects.
How long do cellar spiders live?
Cellar spiders can live for several years in ideal conditions. They are relatively long-lived compared to many other spider species.
Are “daddy long legs” dangerous to other animals?
Harvestmen and cellar spiders can be predators of small insects, and that is where their danger ends. They are not considered dangerous to larger animals, including pets.
How can I get rid of cellar spiders in my home?
You can reduce cellar spider populations by reducing humidity in your home, sealing cracks and crevices, and removing webs regularly.
Is it true that “daddy long legs” have the most potent venom?
This is a myth. As stated earlier, harvestmen lack venom and although cellar spiders do have venom, their fangs are too small to effectively deliver it to humans.
Why are they called “daddy long legs”?
The name “daddy long legs” likely derives from the disproportionately long and spindly legs of these creatures relative to their body size. It is a descriptive nickname rather than a scientifically accurate term.
In conclusion, when someone asks, “Does Daddy Long Legs Make Webs?“, the accurate answer hinges on which creature they are referring to. Harvestmen and crane flies do not, while cellar spiders do.