Hentz Orb-Weaver, Spotted Orbweaver
Neoscona crucifera
Araneidae (Orb-Weavers), Order Araneae. Key family characteristics include building vertical, wheel-like orb webs and having eight similar eyes arranged in two rows.
Physical Description
The spider has a robust, oval-shaped abdomen that is slightly pointed at the rear, typical of many female orb-weavers. The cephalothorax is smaller, covered in fine setae, and the overall posture is compact when resting on surfaces or screens.
Size Estimate
Body length is approximately 10 to 15 millimeters for females, with a leg span around 25 to 35 millimeters, representing an adult or sub-adult specimen.
Coloration & Markings
Features a variable brown to reddish-tan base coloration with a distinctive leaf-like or scalloped pattern (folium) on the dorsal abdomen, often accompanied by lighter spots and dark outlining.
Web Type
Builds large, vertical circular orb webs made of sticky silk, typically constructed in evening hours across open spaces, porches, or window screens to intercept flying insects.
Eye Arrangement
Consists of eight small eyes arranged in two distinct transverse rows on the front of the cephalothorax, typical of the orb-weaver family.
Leg Characteristics
Legs are moderately long, distinctly banded with dark rings, and equipped with spines and hairs for gripping silk and subduing struggling prey.
Venom & Safety Information
Venom Information
Possesses mild neurotoxic venom used strictly to subdue insect prey. It is not specialized for defense against large vertebrates.
Medical Significance
Not medically significant. Bites are extremely rare, usually only occurring if the spider is squeezed or trapped against the skin, resulting in minor localized pain and swelling akin to a mild bee sting.
Safety Recommendations
Leave undisturbed if found outdoors. If relocation from a window or door is necessary, gently guide the spider into a container using a soft brush and release it into nearby garden foliage.
Habitat & Behavior
Habitat & Range
Found commonly throughout North America, particularly east of the Rocky Mountains. Prefers gardens, woodland edges, and the exterior of human dwellings near outdoor lights.
Behavior & Temperament
Docile and non-aggressive. Spiders are typically nocturnal, often waiting in the center of their webs or retreating to a nearby shelter during daylight hours.
Diet & Prey
Feeds primarily on flying insects such as moths, beetles, mosquitoes, and flies captured in its vertical orb web.
Seasonal Activity
Most active and noticeable during late summer and autumn when adults reach full size, build large webs, and prepare for mating and egg-laying.
Description
The Hentz Orb-Weaver is a familiar and beneficial backyard resident. Often spotted clinging to window screens or resting in the centers of intricate wheel-shaped webs, this robust spider serves as a master pest controller, quietly reducing populations of flying insects around homes and gardens.
Key Features
Hairy, robust, oval abdomen featuring a scalloped dorsal pattern; tendency to build large vertical orb webs; nocturnal habit of resting in the web center or a nearby retreat.
Similar Species
Other orb-weavers in the genus Neoscona and Araneus. Distinguished primarily by subtle differences in the abdominal folium pattern and epigynum structure in females.
Life Cycle
Females construct silken egg sacs in protected crevices during autumn containing hundreds of eggs. Spiderlings emerge in spring, dispersing via ballooning before maturing by late summer.
Ecological Importance
Acts as an important biological control agent by consuming large numbers of pest and nuisance flying insects, while serving as prey for birds and wasps.
Conservation Status
Secure and widespread, with stable populations facing no significant conservation threats.
Interesting Facts
Many orb-weavers routinely consume and recycle their own silk webs daily to recover proteins before spinning a fresh web each evening.
Photography Tips
Photograph from the side or slightly above against a clean background. Use a macro lens if possible, and ensure adequate natural lighting without harsh flashes to capture the delicate abdominal patterns.
Identified: 2026-09-21T19:39:33.709783