Hentz Orb-Weaver, Spotted Orb-Weaver, Barn Spider
Neoscona crucifera
Family Araneidae (Orb-Weavers), Order Araneae. Key family characteristics include building symmetrical wheel-shaped webs and typically possessing eight similar-sized eyes arranged in two rows.
Physical Description
The body features a distinct, rounded, leaf-shaped or shield-like abdomen that tapers slightly rearward, typical of many orb-weavers. The cephalothorax is narrower, covered in fine setae, and the overall posture is compact when resting on structures.
Size Estimate
Body length ranges generally from 9 to 18 millimeters for females, with males being smaller. Leg span is approximately 25 to 40 millimeters. This appears to be an adult or sub-adult specimen.
Coloration & Markings
Variable base coloration ranging from yellowish-brown to reddish-brown or dark grey. The dorsal abdomen often features a distinct folium pattern with lighter outlines and subtle spots or crosses, helping it blend into wooden structures.
Web Type
Constructs a classic vertical orb web, a large and intricate wheel-shaped snare often built across open spaces, porches, or between architectural elements of buildings to catch flying nocturnal insects.
Eye Arrangement
Eight eyes arranged in two rows of four on the anterior portion of the cephalothorax, typical of the Araneidae family, with lateral eyes often grouped in pairs.
Leg Characteristics
Long, robust legs featuring distinct dark banding or rings, equipped with numerous spines and fine hairs used for detecting vibrations in the web and manipulating prey.
Venom & Safety Information
Venom Information
Produces a mild neurotoxic venom targeted at immobilizing invertebrate prey. It is not potent enough to cause systemic harm to humans.
Medical Significance
Harmless to humans. Bites are extremely rare, typically occurring only if the spider is squeezed or trapped against the skin, resulting in mild, localized pain and minor swelling akin to a mosquito bite.
Safety Recommendations
No special precautions needed beyond standard caution. If relocation is desired, gently guide the spider into a container using a piece of cardboard and release it outdoors.
Habitat & Behavior
Habitat & Range
Found widely across North America, particularly in eastern and central regions. Prefers wooded areas, gardens, and human-made structures such as porches, eaves, and fences where artificial lights attract flying prey.
Behavior & Temperament
Nocturnal hunters that often construct or rebuild their webs at dusk and retreat to nearby crevices or foliage during daylight hours. Highly docile and non-aggressive toward humans.
Diet & Prey
Feeds primarily on flying insects such as moths, beetles, mosquitoes, and flies trapped in the vertical orb web.
Seasonal Activity
Most active and noticeable during late summer and autumn when adults reach maximum size and females produce egg sacs.
Description
The Hentz Orb-Weaver is a familiar and beneficial nocturnal neighbor, frequently spotted crafting its intricate wheel-shaped webs near porch lights. As a master builder, it spends its nights harvesting flying pests before retiring to a quiet hiding spot by day.
Key Features
Rounded, brownish abdomen with subtle folium markings, preference for building large vertical orb webs near human dwellings, and nocturnal activity patterns.
Similar Species
Other Araneus and Neoscona species, such as Neoscona domiciliorum (Spotted Orb-Weaver) and Araneus diadematus (European Garden Spider). Distinguished primarily by subtle variations in abdominal markings and ventral patterns.
Life Cycle
Females construct silken egg sacs in sheltered autumn locations, depositing hundreds of eggs that overwinter. Spiderlings emerge in spring, disperse via ballooning, and mature by late summer or autumn.
Ecological Importance
Acts as an effective natural pest control agent by significantly reducing populations of flying insects, mosquitoes, and agricultural pests.
Conservation Status
Secure and widespread, with stable populations that thrive in both natural habitats and human-altered environments.
Interesting Facts
Many orb-weavers consume and recycle their own webs nightly to recover proteins and amino acids used in silk production.
Photography Tips
Use a macro lens with a flash or auxiliary light source at night when the spider is active in its web. Capture dorsal shots from a safe angle to highlight abdominal markings.
Identified: 2026-09-30T23:07:16.918671