Daddy long legs is a term often used for harvestmen (Opiliones), which aren’t true spiders but arachnids with long, thin legs and rounded bodies. However, many true spiders, particularly those in the Pholcidae family (cellar spiders), share a similar appearance with elongated, spindly legs and small bodies. These spiders are typically harmless to humans, build irregular webs, and are found in damp or indoor environments.
Daddy Long Legs
Common Harvestman (Phalangium opilio)
Perhaps the most widely recognized true daddy longlegs, this species has a compact, fused oval body with extremely long legs. It is common in North America, Europe, and Asia, often found in gardens, grasslands, and forests. It is a scavenger, feeding on plant material, insects, and organic debris.
Eastern Harvestman (Leiobunum vittatum)
This species is widespread in the eastern United States and has a distinctively striped body. It thrives in woodlands and fields, often congregating in large numbers during cooler months. Their long legs make them appear delicate, but they are hardy creatures well-adapted to varied environments.
Western Harvestman (Leiobunum calcar)
Found primarily in western North America, this harvestman is known for its spiny leg joints, which give it a slightly rougher appearance than smoother-bodied relatives. It inhabits dry grasslands, rocky areas, and forest edges, feeding opportunistically on insects and detritus.
European Harvestman (Opilio parietinus)
Native to Europe but also spread to North America, this species is commonly found on walls, fences, and vegetation. It has a mottled brown body and is known for its ability to adapt to urban environments. It often shares spaces with humans, particularly in gardens and near homes.
Red Harvestman (Leiobunum rotundum)
This species has a reddish-brown body with long black legs, creating a striking contrast. It prefers damp environments such as hedgerows, marshes, and forests. Like other harvestmen, it feeds on decaying plant and animal matter, playing an important role in nutrient recycling.
Cave Harvestman (Hadrobunus grandis)
Living in dark, moist caves and rocky crevices, this species has adapted to low-light environments. Its legs are long and sensitive, allowing it to navigate rocky terrain in search of food. Cave-dwelling harvestmen are often pale compared to their outdoor relatives.
Daddy Longlegs Spider (Pholcus phalangioides)
This cellar spider is the most famous “daddy longlegs spider.” With its tiny body and legs several times longer than its torso, it is commonly found indoors in corners and basements. It builds messy cobwebs and feeds on small insects, occasionally even preying on other spiders.
Long-Bodied Cellar Spider (Pholcus manueli)
Closely resembling Pholcus phalangioides, this species is slightly smaller and less common in homes but still widespread in temperate climates. It spins irregular webs in dark, undisturbed spaces like sheds, attics, and crawl spaces. Its elongated body makes it look almost identical to the common cellar spider.
Short-Bodied Cellar Spider (Pholcus opilionoides)
This species has a shorter body but retains the same delicate, spindly legs. It is more frequently found outdoors in sheltered spots such as caves, hollow logs, and under bridges. Its compact body form distinguishes it from the long-bodied cellar spiders.
Guinea Cellar Spider (Smeringopus pallidus)
Pale and fragile-looking, this spider is often found in warmer climates and has spread worldwide. It is a frequent house-dweller in tropical and subtropical regions. Its translucent legs and small, round body give it the classic “daddy longlegs” look that easily leads to confusion.
Holocnemus pluchei
Native to the Mediterranean but now widespread in the United States, this species builds tangled webs in gardens, garages, and near windows. It has a rounded body and very thin legs, making it one of the more convincing daddy longlegs lookalikes.
Crossopriza lyoni
Sometimes called the “tailed cellar spider,” this species is notable for its tail-like abdomen extension. It thrives in warm regions worldwide, particularly in tropical and subtropical areas. Its long legs and delicate frame make it nearly indistinguishable from other cellar spiders without close inspection.