Hentz Orb-Weaver, Spotted Orbweaver
Neoscona crucifera
Family Araneidae (Orb-Weavers), Order Araneae
Physical Description
Robust, stout-bodied spider with a clearly demarcated, bulbous abdomen that is slightly pointed or rounded at the rear, and a smaller, hairy cephalothorax. Exhibits pronounced sexual dimorphism, with females being significantly larger and rounder than males.
Size Estimate
Body length typically ranges from 9 to 19 millimeters for females, with a leg span reaching up to 30 to 40 millimeters. The specimen shown appears to be an adult or sub-adult female.
Coloration & Markings
Variable coloration ranging from straw-yellow, orange-brown, to dark reddish-brown. The abdomen often features a distinct leaf-like pattern or a series of spots and a central line, sometimes accompanied by pale lateral bands.
Web Type
Vertical orb web characterized by sticky spiral lines and a non-sticky hub where the spider typically waits upside down. The web is often constructed in the evening on porches, eaves, or between garden plants.
Eye Arrangement
Eight small eyes arranged in two distinct rows on the anterior portion of the cephalothorax, typical of the orb-weaver family Araneidae, featuring lateral eyes that are often set in pairs.
Leg Characteristics
Moderately long, sturdy legs with distinct dark and light banding, covered in fine setae and small spines. Legs are often held in a characteristic spread-eagled posture when resting on the web hub.
Venom & Safety Information
Venom Information
Neurotoxic/proteolytic venom used strictly to subdue insect prey. It has very low potency relative to humans and is not medically significant.
Medical Significance
Harmless to humans. A bite may cause minor, temporary local pain, redness, or swelling similar to a mosquito bite, requiring no special medical treatment beyond basic first aid.
Safety Recommendations
No special precautions needed. If relocation is desired, gently guide the spider into a container using a piece of cardstock and release it outdoors in a garden or wooded area.
Habitat & Behavior
Habitat & Range
Common throughout North America, particularly the eastern and central regions. Prefers woodland edges, gardens, man-made structures, exterior walls, and porches where outdoor lighting attracts nighttime insect prey.
Behavior & Temperament
Nocturnal web-builder that spends daylight hours hiding nearby or resting quietly at the center of the orb web. Generally docile and non-aggressive toward humans, typically retreating or dropping to the ground if disturbed.
Diet & Prey
Feeds primarily on flying nocturnal insects such as moths, beetles, mosquitoes, and midges captured in its sticky orb web. Prey is quickly immobilized with a bite and wrapped in silk.
Seasonal Activity
Most active and noticeable during late summer and autumn when adults reach full size, mating occurs, and females build egg sacs before succumbing to cold weather.
Description
The Hentz Orb-Weaver is a master architect of the night, spinning large, intricate wheel-shaped webs near porch lights and gardens. With its warm brownish tones and bulbous patterned abdomen, it is a quintessential beneficial garden spider that spends daylight hours waiting patiently for unwary flying insects.
Key Features
Hairy, bulbous abdomen with variable folium or spotted patterns, nocturnal habit of building large vertical orb webs, and a preference for resting head-down at the center of the web.
Similar Species
Other orb-weavers such as Neoscona domiciliorum (The Barn Spider) and Araneus diadematus (European Garden Spider). Distinguished primarily by subtle variations in abdominal markings and genital morphology.
Life Cycle
Females construct silk egg sacs in sheltered locations during autumn, laying hundreds of eggs. Spiderlings emerge in spring and disperse via ballooning. The species generally has an annual life cycle, dying off with the first hard frosts.
Ecological Importance
Serves as an important natural pest control agent by consuming large quantities of flying agricultural and household insect pests, while also acting as a prey food source for birds and wasps.
Conservation Status
Not evaluated by the IUCN, but populations are widespread, stable, and highly adaptable to human-modified environments.
Interesting Facts
Many orb-weavers consume and recycle their entire web nightly to reclaim proteins before spinning a fresh one just before dusk. They are also famous for their ability to construct complex, mathematically precise webs in under an hour.
Photography Tips
Best photographed at night using a macro lens and a diffused flash to highlight the glossy details of the web and the intricate patterns on the spider's dorsal abdomen while avoiding harsh shadows.
Identified: 2026-09-11T01:47:39.259902