Hentz Orb-Weaver, Spotted Orbweaver
Neoscona crucifera
Family Araneidae (Orb-Weavers), Order Araneae. Key family characteristics include building vertical, wheel-like orb webs, having eight similar-sized eyes in two rows, and often featuring robust, hairy bodies with prominent abdomens.
Physical Description
The spider has a robust, rounded, and somewhat hairy body with a well-defined, somewhat flattened cephalothorax and a bulbous, oval abdomen that slightly overlaps the front body section. The texture is covered in fine setae and small spines, typical of many orb-weavers.
Size Estimate
Body length is approximately 10 to 15 millimeters, with a leg span reaching around 25 to 30 millimeters. This specimen appears to be an adult female, which are notably larger and bulkier than males.
Coloration & Markings
The base coloration ranges from light tan to reddish-brown and deep orange-brown. The abdomen features mottled patterns, often with a subtle or distinct central folium pattern and lighter spots or a broken cross-like marking, though color intensity varies significantly.
Web Type
Builds a classic, vertical orb web that can reach substantial sizes, often spanning a foot or more across. These temporary webs are typically constructed in the evening in open spaces, gardens, or near outdoor lights to catch flying insect prey.
Eye Arrangement
Features eight eyes arranged in two distinct rows on the anterior portion of the cephalothorax, consisting of lateral pairs and a central quadrangle, typical for the Araneidae family.
Leg Characteristics
The legs are moderately long, stout, and heavily banded with alternating light and dark brown rings. They are covered in visible spines and hairs, and are typically spread out widely in a flattened posture when resting on vertical surfaces.
Venom & Safety Information
Venom Information
Possesses mild neurotoxic and proteolytic venom designed strictly for subduing small insect prey. It is not potent enough to cause systemic harm or serious medical issues in humans.
Medical Significance
Harmless to humans. A bite is extremely rare and typically causes only minor, localized symptoms such as slight pain, redness, or mild swelling that resolves quickly without medical intervention.
Safety Recommendations
No special safety measures are required as they are completely harmless. If relocation is necessary, gently guide the spider into a container using a piece of cardstock and release it outdoors.
Habitat & Behavior
Habitat & Range
Found widely across North and South America, particularly in the eastern and central regions of the United States. Prefers gardens, woodland edges, agricultural fields, and exterior walls of buildings where outdoor lighting attracts nighttime prey.
Behavior & Temperament
Nocturnal hunters that spend the day hiding in nearby foliage or crevices, often returning to a central retreat or rebuilding their web nightly. They are docile, non-aggressive, and only bite if trapped or squeezed directly against human skin.
Diet & Prey
Feeds primarily on flying insects such as moths, beetles, mosquitoes, and flies captured in their vertical orb webs. Prey is immobilized with a quick venomous bite and wrapped in silk before consumption.
Seasonal Activity
Most active and visible during late summer and autumn when adults reach maximum size and females construct egg sacs. They overwinter primarily in the egg stage or as juveniles in protected shelters.
Description
The Hentz Orb-Weaver is a familiar and beneficial nighttime architect commonly encountered near porches and gardens. With its rich reddish-brown tones and intricate abdominal patterns, it serves as a master pest controller, spinning large wheel-shaped webs to capture flying insects before retreating to the shadows by daylight.
Key Features
Distinguished by its robust, reddish-brown to orange body, banded legs with visible spines, bulbous abdomen with mottled patterns, and the habit of constructing large vertical orb webs.
Similar Species
Can be confused with other spotted orb-weavers such as Neoscona domiciliorum (Barn Spider) or Araneus diadematus (European Garden Spider), which can be distinguished by specific abdominal markings and color variations.
Life Cycle
Mating occurs in late summer and autumn, after which females deposit spherical silk egg sacs containing hundreds of eggs in sheltered crevices or foliage. Spiderlings emerge in spring following overwintering, undergoing multiple molts to reach adulthood by late summer.
Ecological Importance
Acts as a vital natural predator of flying insect populations, helping control pests like mosquitoes and agricultural insects while serving as an important food source for birds and small mammals.
Conservation Status
Not evaluated by the IUCN, but populations are secure, widespread, and highly adaptable to human-modified environments.
Interesting Facts
Many orb-weaver spiders consume their own webs daily to recycle the proteins used in silk production before spinning a fresh web the following evening.
Photography Tips
Use a macro lens with a flash or good side lighting to highlight the intricate textures and leg banding. The best time to photograph is at night when they are actively positioned in the center of their webs.
Identified: 2026-09-04T19:45:23.994723