Hentz Orb-Weaver, Spotted Orbweaver, Barn Spider
Neoscona crucifera
Araneidae (Orb-Weavers), Order Araneae. Key family characteristics include building vertical wheel-like webs, having eight similar eyes, and excellent vision primarily tuned for light and motion.
Physical Description
The spider has a robust, bulbous abdomen typical of female orb-weavers, attached to a smaller, hairy cephalothorax. The body appears slightly textured with fine setae. The abdomen is rounded and plump, signaling it is likely a well-fed adult female.
Size Estimate
Body length is approximately 10 to 15 millimeters for the female, with a leg span around 25 to 35 millimetres. This appears to be a mature adult female specimen.
Coloration & Markings
The coloration is reddish-brown to orange-brown with mottled patterns on the dorsal abdomen, sometimes featuring subtle darker spots or a vague cross-like folium pattern, blending in well with wooden structures and brick exteriors.
Web Type
Constructs a classic vertical orb web, a symmetrical circular wheel of sticky silk used to intercept flying nocturnal insects. The web is often rebuilt nightly.
Eye Arrangement
Eight eyes arranged in two rows of four on the anterior portion of the cephalothorax, typical of the orb-weaver family, with median eyes slightly larger.
Leg Characteristics
Legs are moderately long, robust, banded with lighter and darker brown rings, and covered in fine hairs and spines designed for navigating sticky webs and grasping prey.
Venom & Safety Information
Venom Information
Venom is specialized for subduing invertebrate prey. It is low in potency regarding humans and is not medically significant.
Medical Significance
Harmless to humans. A bite may cause minor, localized discomfort, slight swelling, or redness akin to a mild mosquito bite, resolving quickly without medical intervention.
Safety Recommendations
No special safety measures required beyond avoiding handling with bare hands if you wish to prevent accidental defensive bites. Easily relocated using a cup and a piece of paper if found in an inconvenient doorway.
Habitat & Behavior
Habitat & Range
Common throughout North America, particularly the eastern and southern regions. Frequently found around human habitations, porches, exterior walls, gardens, and near outdoor lights.
Behavior & Temperament
Nocturnal web-builder that often hides in a retreat or hangs quietly in the hub of the web during the evening and night. Highly docile, reluctant to bite, and typically drops from the web or flees when disturbed.
Diet & Prey
Feeds primarily on flying insects attracted to outdoor lighting, such as moths, beetles, mosquitoes, and flies, immobilizing them quickly with venom after entanglement.
Seasonal Activity
Most active and noticeable during late summer and autumn when females reach full adult size and construct webs near outdoor lights to feed heavily before egg-laying.
Description
The Hentz Orb-Weaver is a familiar and welcome guest around homes, recognizable by its reddish-brown rounded body suspended in a vertical wheel web. Operating primarily at night, it serves as an exceptional natural pest controller, quietly reducing populations of flying insects near porches and gardens.
Key Features
Plump reddish-brown to orange abdomen, distinct banding on the legs, vertical orb web construction, and nocturnal habit of hanging head-down in the center of the web.
Similar Species
Other Neoscona species such as Neoscona domiciliorum (The Red House Spider) and various Araneus species (such as Araneus cavaticus). Distinguished by specific abdominal markings and color hues.
Life Cycle
Females construct silk egg sacs in sheltered cracks or crevices during autumn, containing hundreds of eggs. Spiderlings emerge in spring, dispersing via ballooning before growing through multiple molting stages.
Ecological Importance
Acts as a primary predator of flying insect populations around human structures and natural habitats, helping regulate pest numbers and serving as food for birds and larger predators.
Conservation Status
Not evaluated by the IUCN, but populations are widespread, stable, and highly resilient in both urban and rural environments.
Interesting Facts
Many orb-weavers consume their own webs each morning to recycle the protein-rich silk before spinning a fresh web the following evening.
Photography Tips
Best photographed at night using a macro lens and subtle flash or off-camera lighting to highlight the rich reddish tones and detailed leg banding against the dark background.
Identified: 2026-09-01T12:55:32.367548