Hentz Orb-Weaver, Spotted Orbweaver
Neoscona crucifera
Family Araneidae (Orb-Weavers), Order Araneae
Physical Description
Robust, rounded body shape typical of orb-weavers with a broad, highly bulbous abdomen that tapers slightly towards the rear and a smaller, hairy cephalothorax. Marked sexual dimorphism is present, with females being significantly larger and heavier-bodied than males.
Size Estimate
Body length typically ranges from 9 to 19 mm for females, with a leg span reaching up to 30 to 40 mm. This specimen appears to be an adult or subadult female.
Coloration & Markings
Variable coloration ranging from light yellow-brown, orange, to reddish-brown or dark grey. The dorsal abdomen often features a distinct cross-like pattern or series of spots and chevron markings, frequently outlined in lighter or darker tones.
Web Type
Vertical orb web constructed with sticky spiral threads, typically built at night in open spaces, near outdoor lights, or between structural elements of buildings to intercept flying insects.
Eye Arrangement
Eight eyes arranged in two distinct rows, typical of the Araneidae family, with lateral eyes often grouped in pairs and median eyes set on a slight raised tubercle.
Leg Characteristics
Strong, moderately long legs featuring prominent spines and distinct dark and light banding patterns. Legs are frequently held outstretched in a wide radius when resting on the web.
Venom & Safety Information
Venom Information
Neurotoxic/cytotoxic venom used strictly to immobilize insect prey. It is low in potency relative to humans and lacks medical significance.
Medical Significance
Harmless to humans. Bites are extremely rare, typically only occurring if the spider is directly squeezed or trapped against the skin. Symptoms are minor and localized, comparable to a mild mosquito bite.
Safety Recommendations
No specific safety precautions needed beyond avoiding handling them roughly. If found indoors, gently guide the spider into a container and release it outdoors.
Habitat & Behavior
Habitat & Range
Found widely across North America, particularly in eastern and central regions. Prefers gardens, woodlands, forest edges, and human-made structures such as porches and exterior walls where outdoor lighting attracts prey.
Behavior & Temperament
Nocturnal or crepuscular in web-building and hunting activity, often retreating to a nearby shelter or leaf during daylight hours or hanging at the center of the web at night. Generally docile and non-aggressive, fleeing or dropping from the web when disturbed.
Diet & Prey
Carnivorous, feeding primarily on flying insects such as moths, beetles, mosquitoes, and flies captured in the vertical orb web.
Seasonal Activity
Most active and visible during late summer and autumn when adults reach maximum size, mate, and construct egg sacs.
Description
The Hentz Orb-Weaver is a familiar and beneficial nocturnal architect of the garden. Hanging gracefully at the center of its large wheel-shaped web, it patiently waits for unsuspecting flying insects. With its warm brownish tones and distinctive abdominal markings, it represents a classic and harmless member of the orb-weaver family.
Key Features
Bulbous, rounded abdomen with subtle cross or chevron patterns, hairy cephalothorax, large vertical orb web, and nocturnal habits centered around outdoor lights.
Similar Species
Other Neoscona species (such as Neoscona domiciliorum) and various Araneus species (such as the Barn Spider, Araneus cavaticus). Distinctions rely heavily on minute epigynal or ventral markings.
Life Cycle
Females construct tough, papery silk egg sacs in autumn containing hundreds of eggs, which overwinter before spiderlings emerge in spring. Undergoes multiple molts to reach maturity by late summer.
Ecological Importance
Serves as an efficient natural pest control agent by consuming large quantities of flying agricultural and household insect pests.
Conservation Status
Not evaluated by the IUCN, but populations are stable, widespread, and highly resilient to human modification.
Interesting Facts
Many orb-weavers consume and recycle their entire web daily to recover proteins and amino acids before spinning a fresh one just before dusk.
Photography Tips
Use a macro lens with a flash or external light source at night to highlight the intricate details of the web and the dorsal patterns of the spider while maintaining a safe distance.
Identified: 2026-09-23T05:08:15.268439