Spotted Orb-Weaver, Hentz Orb-Weaver
Neoscona crucifera
Araneidae (Orb-Weavers), Order Araneae. Characterized by building vertical, wheel-like orb webs and having robust, hairy bodies with prominent abdomens.
Physical Description
Robust, hairy body with a broad, oval abdomen that tapers slightly toward the rear. The cephalothorax is smaller, covered in fine greyish hairs. The abdomen features a distinct pattern of bumps or tubercles along its dorsal surface.
Size Estimate
Adult females typically range from 9 to 19 mm in body length, while males are smaller, around 8 to 13 mm. Leg span can reach up to 40 mm.
Coloration & Markings
Variable coloration ranging from yellow-brown, orange, to dark reddish-brown or grey. The abdomen features a central leaf-like pattern (folium) outlined in dark brown or black, often accompanied by pale spots and a distinctive reddish or orange hue on the sides near the front.
Web Type
Classic vertical orb web, a finely spun circular wheel web featuring sticky spiral threads and a non-sticky structural hub where the spider typically waits upside down.
Eye Arrangement
Eight small eyes arranged in two rows of four on the anterior portion of the cephalothorax, typical of the orb-weaver family, with lateral eyes often positioned on small tubercles.
Leg Characteristics
Long, robust legs heavily ringed and banded with dark brown and white or yellowish coloration, covered in prominent spines and hairs for gripping silk and prey.
Venom & Safety Information
Venom Information
Neurotoxic venom used primarily to immobilize insect prey. It is low in potency relative to humans and specialized for invertebrates.
Medical Significance
Harmless to humans. Bites are extremely rare and typically only occur if the spider is directly squeezed or trapped against the skin. Symptoms are mild, limited to temporary localized pain and slight swelling.
Safety Recommendations
No special precautions needed. If found near a doorway, the spider can be gently guided into a container and relocated to a nearby garden shrub unharmed.
Habitat & Behavior
Habitat & Range
Common throughout North America, particularly the eastern and central regions. Prefers wooded edges, gardens, shrubs, and exterior walls of buildings where outdoor lighting attracts flying insects.
Behavior & Temperament
Docile and non-aggressive. Nocturnal hunters that typically rebuild their webs at dusk and consume them at dawn to recycle proteins. They retreat to nearby foliage or crevices during the day.
Diet & Prey
Generalist predator feeding primarily on flying insects such as moths, beetles, mosquitoes, and flies captured in its vertical orb web.
Seasonal Activity
Most active and visible during late summer and autumn when adults reach full size and females construct egg sacs before dying off with the first hard frosts.
Description
The Spotted Orb-Weaver is a master architect of the night, spinning gorgeous wheel-shaped webs across porches, gardens, and woodland borders. With its fuzzy, beautifully patterned abdomen and industrious habits, this nocturnal weaver serves as a beneficial garden resident, quietly reducing flying pest populations.
Key Features
Hairy body, distinctive folium (leaf-like) pattern on the broad abdomen, banded legs with visible spines, and the construction of a large vertical orb web.
Similar Species
Araneus cavaticus (Barn Spider) and Neoscona domiciliorum (Redfemoral Spotted Orb-Weaver), which can be distinguished by subtle differences in abdominal markings and leg coloration.
Life Cycle
Mating occurs in autumn, after which females deposit spherical silk egg sacs in sheltered crevices or foliage containing hundreds of eggs. Spiderlings hatch in spring, dispersing via ballooning.
Ecological Importance
Acts as an effective natural pest control agent by consuming large quantities of flying insects and serving as a vital food source for birds and small mammals.
Conservation Status
Not evaluated by the IUCN, but populations are stable, widespread, and highly adaptable to human-modified environments.
Interesting Facts
Spotted Orb-Weavers routinely consume and recycle their entire orb webs every single night to recover valuable amino acids and proteins before spinning a fresh one.
Photography Tips
Best photographed at night using a flash, as this is when they are actively positioned at the center of their webs. Capture a dorsal view to highlight the abdominal pattern.
Identified: 2026-10-07T21:40:34.738769