Huntsman Spider, Giant Crab Spider
Eusparassus walckenaeri
Sparassidae (Huntsman Spiders), Order Araneae. Key family characteristics include laterigrade (crab-like) legs that allow sideways movement, and a lack of true webs.
Physical Description
The spider has a robust, flattened body with a broad cephalothorax and a plump oval abdomen. The texture appears somewhat glossy to velvety with fine hairs. It shows typical huntsman proportions with laterigrade legs radiating outwards.
Size Estimate
Body length is approximately 15-25 mm with a leg span reaching up to 60-80 mm. This specimen appears to be an adult or sub-adult.
Coloration & Markings
Predominantly dark brown to black coloration across the body and legs. Subtle yellowish-buff banding or pale markings are visible near the base of the legs close to the cephalothorax.
Web Type
Huntsman spiders do not build webs to catch prey. They are active roaming hunters that rely on speed and stealth.
Eye Arrangement
Eight small, dark eyes arranged in two slightly curved rows across the front of the cephalothorax, characteristic of the Sparassidae family.
Leg Characteristics
Long, robust, forward-and-sideways sprawling legs typical of crab spiders. The legs show dark coloration with slight pale banding near the coxae and trochanters, held in a flattened lateral posture.
Venom & Safety Information
Venom Information
Contains neurotoxic and myotoxic components typical of large huntsman spiders, but venom is generally weak and specialized for arthropod prey.
Medical Significance
Not medically significant to humans. A bite may cause localized pain, minor swelling, and redness similar to a bee sting, but systemic effects are extremely rare.
Safety Recommendations
Avoid direct handling with bare hands. If found inside, gently capture the spider under a container and release it outdoors. Bites are uncommon and typically only happen if the spider is trapped against the skin.
Habitat & Behavior
Habitat & Range
Found in Mediterranean regions, parts of Southern Europe, and the Middle East. Prefers warm climates, often hiding under loose bark, in rock crevices, or occasionally wandering into human dwellings.
Behavior & Temperament
Nocturnal and highly agile hunter. Generally non-aggressive toward humans, preferring to flee at remarkable speed when disturbed, though females guarding egg sacs may defend them.
Diet & Prey
Carnivorous, feeding on a wide variety of insects, other arthropods, and occasionally small lizards. Uses speed and powerful chelicerae to subdue prey without a web.
Seasonal Activity
Most active during the warmer spring and summer months. They seek shelter in protected areas, including homes, as temperatures drop in autumn.
Description
This large, dark huntsman spider is a master of nocturnal stealth. With its flattened body and sprawling, crab-like legs, it is perfectly adapted for squeezing into narrow crevices during the day and sprinting across surfaces at night in search of insect prey.
Key Features
Laterigrade (crab-like) leg orientation, flattened body shape, dark coloration with subtle leg banding, and absence of an orb web.
Similar Species
Other large dark spiders such as wolf spiders (Lycosidae) or funnel-web weavers (Agelenidae). Wolf spiders can be distinguished by their upright stance and prominent eye arrangement, while funnel-weavers build sheet webs.
Life Cycle
Females construct flat, disc-like silk egg sacs hidden under bark or stones, guarding them fiercely. Spiderlings hatch after a few weeks and disperse via ballooning or active crawling.
Ecological Importance
Acts as an effective natural predator of household pests and agricultural insects, playing a crucial role in regulating arthropod populations.
Conservation Status
Not evaluated by the IUCN, but populations are generally stable and widespread across their native range.
Interesting Facts
Huntsman spiders are among the fastest terrestrial invertebrates relative to their size and can flatten their bodies to fit through impossibly narrow cracks.
Photography Tips
Use natural lighting or a diffused flash to highlight the body texture. Maintain a safe distance to avoid startling the spider into a rapid escape, and photograph from a dorsal angle to capture full leg span and markings.
Identified: 2026-10-16T19:40:44.320867