Harvestman, Daddy Longlegs, Opilionid
Phalangium opilio (Likely)
Phalangiidae, Order Opiliones (Note: These are arachnids but NOT true spiders)
Physical Description
Single rounded body unit where the cephalothorax and abdomen are broadly joined (unlike spiders which have a narrow waist). The body is segmented and oval-shaped with an egg-like profile.
Size Estimate
Body length 3.5–9 mm; Leg span can reach up to 50–60 mm. This appears to be an adult specimen.
Coloration & Markings
Grayish-brown to tan with a darker 'saddle' marking on the dorsal surface. The underside is typically lighter or cream-colored.
Web Type
None. Harvestmen do not possess silk glands and cannot spin webs.
Eye Arrangement
Only two eyes located on a prominent central turret (ocularium) on top of the cephalothorax.
Leg Characteristics
Extremely long, slender, and stilt-like. They have multi-jointed tarsi (feet) that are highly flexible and can wrap around objects for grip.
Venom & Safety Information
Venom Information
Non-venomous. They lack both venom glands and fangs (chelicerae are small and pincher-like).
Medical Significance
Completely harmless to humans. They cannot bite effectively and possess no toxins.
Safety Recommendations
No safety precautions needed. If found indoors, they can be gently scooped up by hand or with a cup and moved outside to a garden.
Habitat & Behavior
Habitat & Range
Globally distributed; found in gardens, forests, fields, and around human structures like walls and patios.
Behavior & Temperament
Very docile and non-aggressive. They use their second pair of legs like antennae to sense their surroundings. They may shed a leg (autotomy) to escape predators.
Diet & Prey
Omnivorous and opportunistic. They eat small insects, mites, aphids, vegetable matter, fungi, and are also known to scavenge on dead organic matter.
Seasonal Activity
Most visible in late summer and autumn (harvest time), which gives them their common name.
Description
While often mistaken for spiders, the Harvestman is a unique arachnid cousin. Lacking the ability to spin webs or produce venom, it relies on its Incredible leg length to navigate complex terrain and find food. Its single-fused body part makes it easily distinguishable from spiders to the observant eye.
Key Features
Fused body segments (no waist), two eyes on a central bump, no silk-spinning spinnerets, and eight extremely long legs.
Similar Species
Cellar Spiders (Pholcidae), which have two body segments and build webs; and other Opiliones species which look nearly identical without microscopic examination.
Life Cycle
Females lay eggs in moist soil or moss using a long ovipositor. They typically live for one year, over-wintering as eggs or juveniles in temperate climates.
Ecological Importance
Excellent generalist predators and scavengers. They help control garden pests like aphids and slugs while cleaning up organic debris.
Conservation Status
Not evaluated, but generally widespread and common in urban and rural environments.
Interesting Facts
They possess scent glands that produce a foul-smelling fluid to deter predators. They also perform a 'bobbing' dance when threatened to confuse attackers.
Photography Tips
Focus on the 'ocularium' (eye turret) on top of the body. Since they are often moving, a fast shutter speed or flash is helpful to freeze the motion of their long legs.
User Notes
Blue Turf outside
Identified: 2026-05-04T16:23:56.972116