Wasp Spider, Banded Garden Spider
Argiope bruennichi
Araneidae (Orb-Weavers), Order Araneae. Key family characteristics include building vertical orb-weaving webs with a spiral of sticky silk and possessing eight similar-sized eyes.
Physical Description
The spider has a bulbous, oval-shaped abdomen, a slender cephalothorax, and prominent legs. Females are significantly larger than males and exhibit striking coloration. The anatomy includes chelicerae adapted for subduing insect prey and spinnerets at the rear of the abdomen.
Size Estimate
Females have a body length ranging from 14 to 22 mm, with a leg span up to 45 mm. Males are much smaller, typically 4 to 6 mm. This specimen appears to be a mature female.
Coloration & Markings
Features bold, alternating bright yellow, black, and white transverse bands across the oval abdomen, reminiscent of a wasp's warning coloration. The cephalothorax is covered in silvery-white hairs.
Web Type
Builds a classic vertical orb web close to the ground in tall grass or garden plants. The web often features a distinct zigzag structure of silk called a stabilimentum running vertically through the center.
Eye Arrangement
Has eight small eyes arranged in two rows across the front of the cephalothorax, typical of orb-weavers, adapted for detecting movement and light changes rather than forming sharp images.
Leg Characteristics
Long and tapering legs featuring prominent black and yellow or brown banding. They are often held in pairs, extending forward and backward in a characteristic 'X' shape when resting in the center of the web.
Venom & Safety Information
Venom Information
Uses neurotoxic venom specialized for immobilizing invertebrate prey rapidly. The venom is harmless to humans and large mammals.
Medical Significance
Not medically significant. A bite is extremely rare, usually only occurring if the spider is squeezed or trapped against human skin, and results in mild, localized pain and redness comparable to a mosquito bite.
Safety Recommendations
No special precautions needed. Enjoy observing them from a safe distance. If one is found indoors, gently guide it into a container and release it outdoors.
Habitat & Behavior
Habitat & Range
Found across Europe, North Africa, and parts of Asia, expanding its range northward. Prefers sunny, open habitats with tall grass, meadows, gardens, and shrublands.
Behavior & Temperament
Docile and non-aggressive. When disturbed on the web, it typically shakes the web rapidly to blur its outline or drops to the ground to hide.
Diet & Prey
Feeds primarily on large flying insects such as grasshoppers, flies, bees, and wasps, which become entangled in the sticky spiral of the orb web.
Seasonal Activity
Most active and visible during the late summer and early autumn (July to October), when females reach maturity and lay their egg sacs.
Description
The Wasp Spider is one of Europe's most striking orb-weavers, instantly recognizable by its vivid yellow and black wasp-like stripes. It sits proudly in the center of its intricate web, often embellished with a zig-zag stabilimentum, waiting for unsuspecting prey while providing natural pest control in gardens and meadows.
Key Features
Vivid yellow, black, and white transverse abdominal stripes, a vertical stabilimentum in the center of an orb web, and a silvery cephalothorax.
Similar Species
Argiope lobata, which has a deeply lobed abdomen rather than an oval one, and various wasp species due to Batesian mimicry coloration.
Life Cycle
Females construct brown, pear-shaped egg sacs suspended in vegetation in autumn, containing hundreds of eggs. Spiderlings hatch in spring and disperse via ballooning on silk threads.
Ecological Importance
Acts as an effective predator of grasshoppers and flying insects, helping to regulate insect populations within grassland and garden ecosystems.
Conservation Status
Secure and widespread, with populations actually expanding northward due to changing climatic conditions.
Interesting Facts
The distinctive zigzag web decoration, or stabilimentum, may help camouflage the spider, warn birds away from the web, or reflect UV light to attract pollinating insects.
Photography Tips
Photograph during early morning or late afternoon when natural light is soft. Shoot from the side or slightly above to capture the full pattern of the abdomen and the structure of the web.
Identified: 2026-08-12T18:18:53.815824