Hentz Orb-Weaver, Spotted Orb-Weaver
Neoscona crucifera
Araneidae (Orb-Weavers), Order Araneae. Key family characteristics include building vertical wheel-shaped webs and having eight similar-sized eyes arranged in two rows.
Physical Description
The spider exhibits a robust, bulbous, oval-shaped abdomen that is slightly wider near the front and tapers toward the rear. The cephalothorax is smaller, rounded, and covered in fine setae. Strong sexual dimorphism is present, with females being significantly larger and heavier-bodied than males.
Size Estimate
Body length typically ranges from 9 to 18 millimeters for females, with a leg span reaching up to 30 to 40 millimeters. The specimen appears to be an adult female.
Coloration & Markings
Due to backlighting in the image, the specimen appears largely silhouetted as a dark shape. In natural light, Neoscona crucifera typically features a reddish-brown to yellowish-brown body with a distinct leaf-like or cross-shaped pattern (folium) on the dorsal abdomen, accompanied by subtle lateral banding.
Web Type
Builds a classic vertical orb web consisting of sticky spiral threads supported by non-sticky radial spokes and a central hub. These webs are typically constructed in late afternoon or evening among foliage, porch lights, or structural corners.
Eye Arrangement
Eight eyes arranged in two distinct horizontal rows on the anterior portion of the cephalothorax, consisting of four median eyes forming a square and two lateral pairs.
Leg Characteristics
Legs are moderately long, robust, and spiny, featuring dark and light banding in typical specimens. The legs are often held spread out in a characteristic crouching or waiting posture on the web hub.
Venom & Safety Information
Venom Information
Neurotoxic and proteolytic venom utilized strictly for subduing insect prey. It has very low potency relative to humans and is not medically significant.
Medical Significance
Harmless to humans. A defensive bite may cause mild, localized pain, slight swelling, or redness similar to a mosquito bite, which resolves quickly without medical intervention.
Safety Recommendations
No special precautions needed. If found indoors, gently cup the spider under a glass and release it outdoors into nearby shrubbery or garden foliage.
Habitat & Behavior
Habitat & Range
Found widely across North America, particularly in eastern and central regions. Prefers gardens, woodland edges, shrubs, and around human habitations where exterior lighting attracts flying insect prey.
Behavior & Temperament
Docile and non-aggressive toward humans. They are nocturnal hunters, spending the daytime resting either at the center of the web or hiding in nearby foliage, and actively maintaining or rebuilding their orb webs at night.
Diet & Prey
Generalist predators feeding primarily on flying insects such as moths, beetles, mosquitoes, flies, and occasional grasshoppers trapped in their orb webs.
Seasonal Activity
Most active and commonly observed during late summer and autumn when females reach maximum adult size and construct egg sacs.
Description
The Hentz Orb-Weaver is a quintessential garden spider frequently encountered during late summer and autumn evenings. Recognizable by its stout body and expertly spun vertical wheel webs, it serves as a master architect of the night, silently helping to control populations of flying pests around homes and gardens.
Key Features
Stout, hairy oval abdomen, vertical orb web construction, nocturnal web-building habits, and characteristic brownish coloration with dorsal folium patterns.
Similar Species
Other orb-weavers such as Araneus diadematus (Cross Orb-Weaver), which features distinct white spots forming a cross on the abdomen, and Neoscona arabica.
Life Cycle
Females construct papery silk egg sacs in sheltered autumn locations containing hundreds of eggs. Spiderlings hatch in spring, disperse via ballooning, undergo multiple molts, and reach maturity by late summer or autumn.
Ecological Importance
Acts as an effective natural pest control agent by consuming large numbers of nocturnal flying insects, functioning as an important node in local terrestrial food webs.
Conservation Status
Not evaluated by the IUCN, but populations are widespread, stable, and highly resilient to common human habitat alterations.
Interesting Facts
Many orb-weavers consume their entire web daily to recycle silk proteins and rebuild a fresh, sticky trap before the next nightfall.
Photography Tips
Use a macro lens with a flash or external fill light to illuminate the dorsal markings against the silhouette. Shoot from the side or slightly above to capture body patterns and leg details without disturbing the web.
Identified: 2026-10-08T23:14:15.936821