Giant Crab Spider, Huntsman Spider, Banana Spider, Cane Spider
Heteropoda venatoria
Sparassidae (Huntsman Spiders), Order Araneae
Physical Description
The giant crab spider has a flattened body designed for squeezing into narrow crevices under bark or behind wall hangings. It features a robust cephalothorax and an oval-shaped abdomen, covered in fine setae giving a somewhat velvety texture.
Size Estimate
Body length ranges from 20 to 30 mm, with an impressive leg span of up to 100 to 130 mm (4 to 5 inches) or more in mature specimens.
Coloration & Markings
Generally yellowish-brown to grayish-brown, often featuring a distinct dark chevron or V-shaped marking on the front part of the cephalothorax. The legs may show faint banding.
Web Type
These spiders do not build webs to capture prey. Instead, they are active nocturnal hunters that stalk or ambush their prey.
Eye Arrangement
Eight eyes arranged in two distinct rows of four across the front of the carapace, which is characteristic of the Sparassidae family.
Leg Characteristics
The legs are long, strong, and laterally oriented (crab-like), allowing the spider to scuttle sideways rapidly with great agility.
Venom & Safety Information
Venom Information
Contains neurotoxic components primarily adapted for subduing insect prey. Not considered dangerous to humans.
Medical Significance
Harmless to humans. A bite may cause localized pain, swelling, and redness similar to a bee sting, but medical attention is rarely required.
Safety Recommendations
Avoid handling them bare-handed to prevent accidental defensive bites. If relocation is necessary, place a container over the spider and slide a stiff card underneath.
Habitat & Behavior
Habitat & Range
Widely distributed throughout tropical and subtropical regions globally. Commonly found in human dwellings, outbuildings, gardens, and beneath loose tree bark.
Behavior & Temperament
Fast-moving, nocturnal hunters. They are generally timid and will flee rather than attack, though brooding females can be defensive.
Diet & Prey
Feeds primarily on insects, cockroaches, and sometimes small lizards or geckos, subduing them with speed and venom rather than a web.
Seasonal Activity
Active year-round in warmer climates, with increased wandering activity during warmer months when seeking mates.
Description
The giant crab spider is a welcome sight for many homeowners in the tropics due to its proficiency in controlling pest populations, particularly cockroaches. With its crab-like sideways scuttle and impressive span, it is one of the most recognizable wandering spiders.
Key Features
Laterally splayed legs giving a crab-like appearance, flattened body profile, lack of a capture web, and the distinct V-shaped marking on the carapace.
Similar Species
Other huntsman species in the family Sparassidae, which can be distinguished by subtle variations in coloration and geographic locality.
Life Cycle
Females produce a flat, paper-like egg sac which they guard aggressively. Spiderlings hatch and disperse via ballooning or active crawling.
Ecological Importance
Serves as an effective apex invertebrate predator, helping to regulate insect and small pest populations in tropical and subtropical ecosystems.
Conservation Status
Not evaluated by the IUCN, but populations are generally stable and widespread due to successful human-assisted dispersal.
Interesting Facts
Despite their intimidating size and lightning-fast speed, they are considered beneficial household guests due to their voracious appetite for household pests.
Photography Tips
Use a macro lens with a fast shutter speed to freeze movement, as these spiders can scurry away instantly when illuminated by a flash.
Identified: 2026-09-10T17:42:59.689158