Spotted Orb-Weaver, Barn Spider, Hentz Orb-Weaver
Neoscona crucifera
Araneidae (Orb-Weavers), Order Araneae
Physical Description
The Spotted Orb-Weaver features a distinctively swollen, oval-to-triangular abdomen that often overhangs the cephalothorax. The body is densely covered in fine, hair-like setae, giving it a somewhat fuzzy appearance. Females are considerably larger and more robust than the males, which have smaller abdomens and longer legs relative to their body size.
Size Estimate
Body length typically ranges from 9 to 19 mm for females and 8 to 13 mm for males, with a total leg span reaching up to 30 to 40 mm. This specimen appears to be an adult or sub-adult female.
Coloration & Markings
Base coloration varies widely from light beige, orange-brown, reddish-brown to dark brown. The dorsal abdomen typically displays a variable pattern featuring a central folium or leaf-like marking, sometimes accompanied by pale spots or a series of dark lines. The legs exhibit distinct dark and light banding.
Web Type
Builds a classic vertical orb web consisting of sticky spiral threads and non-sticky structural radii. These webs are frequently constructed near exterior lights, porches, and gardens to capture nighttime flying insects, and the spider often consumes and rebuilds the web nightly.
Eye Arrangement
Consists of eight eyes arranged in two distinct rows on the anterior portion of the carapace. The lateral eyes are typically paired close together, while the four median eyes form a central quadrangle, typical of the orb-weaver family.
Leg Characteristics
Legs are moderately long, robust, and heavily spined with prominent dark and light rings or bands. They lack specialized structures like calamistra, but feature claw tufts and are frequently held in an outstretched, radial posture when resting on the web.
Venom & Safety Information
Venom Information
Possesses mild neurotoxic venom used primarily to immobilize insect prey. The venom has no significant medical impact on humans or large pets.
Medical Significance
Not medically significant. Bites are extremely rare, typically occurring only if the spider is accidentally trapped or squeezed against human skin. Symptoms from a bite are usually minor, consisting of localized mild pain, redness, and slight swelling that resolves quickly.
Safety Recommendations
No special precautions required beyond normal caution when clearing brush or reaching into dark corners. If relocation is desired, gently guide the spider into a container using a piece of cardstock.
Habitat & Behavior
Habitat & Range
Commonly found throughout North and South America, particularly in the eastern and central United States. Preferred habitats include gardens, woodland edges, agricultural fields, and human structures such as exterior walls, porches, and eaves where lighting attracts prey.
Behavior & Temperament
Primarily nocturnal, remaining hidden in a nearby retreat or sitting motionless at the hub of the web during the day. They are docile, non-aggressive spiders that will typically retreat, drop from the web, or play dead when disturbed rather than bite.
Diet & Prey
Feeds primarily on flying nocturnal insects including moths, beetles, mosquitoes, flies, and occasional grasshoppers trapped in the sticky spiral of the orb web. Prey is subdued with a quick bite and wrapped securely in silk before consumption.
Seasonal Activity
Most active and noticeable during late summer and autumn when individuals reach their maximum adult size and webs become prominently established near outdoor lights.
Description
The Spotted Orb-Weaver is a familiar and beneficial garden resident known for crafting magnificent, wheel-shaped webs overnight. With its variable brownish tones and hairy abdomen, it serves as a master architect of the night, silently controlling populations of flying pests around homes and gardens.
Key Features
Characteristically large, hairy, oval abdomen; prominent leg banding; construction of a large, vertical wheel-shaped orb web; nocturnal activity pattern centered around artificial light sources.
Similar Species
Cross Orb-Weaver (Araneus diadematus), which features a distinct white cross pattern on the abdomen; other Araneus species, distinguished by subtle differences in epigynum structure and abdominal markings.
Life Cycle
Mating occurs in late summer and autumn. Females construct papery silk egg sacs containing hundreds of eggs, depositing them in sheltered crevices or foliage where they overwinter. Spiderlings hatch in spring, disperse via ballooning, and mature by late summer.
Ecological Importance
Acts as a primary natural control agent for flying insect populations, including numerous agricultural pests and disease vectors, while serving as an important food source for birds and small mammals.
Conservation Status
Secure and widespread; populations are robust with no special conservation status or threats identified.
Interesting Facts
Spotted Orb-Weavers are famous for consuming their entire web nearly every morning to recycle the silk proteins before constructing a brand new web the following evening.
Photography Tips
Best photographed at night when the spider is actively positioned at the center of its web. Use a macro lens with a ring flash or off-camera diffused flash to highlight the intricate leg banding and abdominal textures against the dark background.
Identified: 2026-08-16T00:27:46.706599