Hentz Orb-Weaver, Spotted Orbweaver
Neoscona crucifera
Family Araneidae (Orb-Weavers), Order Araneae
Physical Description
Robust, hairy body with a distinctively swollen, bulbous oval-to-triangular abdomen and a smaller, hairy cephalothorax. Shows pronounced sexual dimorphism, with females being significantly larger and heavier than males.
Size Estimate
Body length ranges from 9 to 19 mm for females, with a leg span extending up to 30 to 40 mm. This specimen appears to be a mature adult female.
Coloration & Markings
Variable base coloration ranging from reddish-brown, orange, to yellowish-tan. The abdomen typically features a distinct leaf-like pattern, spots, or a cross-like marking, accompanied by alternating dark and light banding on the legs.
Web Type
Constructs a large, vertical orb web made of sticky silk. Typically built in evening hours near outdoor lights, porches, garden areas, or between structures to catch flying insects.
Eye Arrangement
Eight small eyes arranged in two distinct rows on the anterior portion of the cephalothorax, typical of the orb-weaver family Araneidae.
Leg Characteristics
Long, robust legs heavily armed with prominent spines, hairs, and distinct dark and light banding. Legs are often spread out widely when resting in the center of the web.
Venom & Safety Information
Venom Information
Neurotoxic/proteolytic venom adapted specifically for subduing insect prey. It is not potent or dangerous to humans.
Medical Significance
Harmless to humans. A bite from Neoscona crucifera is rare, typically only occurring if the spider is directly squeezed or trapped against the skin, resulting in mild, localized pain and minor swelling similar to a mosquito bite.
Safety Recommendations
Leave undisturbed if found outdoors. If located on a window screen or doorway where it is unwanted, gently coax it into a container using a piece of paper and relocate it to a nearby garden bush.
Habitat & Behavior
Habitat & Range
Found widely across North America, particularly in eastern and central regions. Prefers gardens, woodland edges, porches, and the exterior walls of buildings where lighting attracts prey.
Behavior & Temperament
Docile and non-aggressive. Spiders are primarily nocturnal, often hiding in a nearby retreat or sitting head-down in the center of the web during the night and dismantling the web at dawn.
Diet & Prey
Generalist predator feeding on nocturnal flying insects such as moths, beetles, mosquitoes, flies, and occasional small bugs trapped in the orb web.
Seasonal Activity
Most active and noticeable during late summer and autumn when adults reach maximum size, mate, and lay eggs before dying off with the first hard frost.
Description
The Hentz Orb-Weaver is a familiar and beneficial nocturnal architect often spotted hanging on window screens or porches during late summer and autumn. With its hairy legs, reddish-brown hues, and intricately patterned abdomen, it is a quintessential orb-weaver that serves as an effective natural pest controller around human habitations.
Key Features
Hairy, spiny legs with noticeable banding; reddish-brown coloration; bulbous abdomen with subtle markings; tendency to build vertical orb webs near lights.
Similar Species
Cross Orb-Weaver (Araneus diadematus), which features a prominent white cross on the abdomen, and other Neoscona species, distinguished primarily by epigynum and subtle dorsal patterns.
Life Cycle
Females produce a silken egg sac in autumn containing hundreds of eggs, which overwinter before spiderlings hatch in spring. Undergoes multiple molts to reach maturity by late summer.
Ecological Importance
Acts as an important biological control agent by consuming large quantities of flying insect pests, contributing significantly to garden and residential ecosystem balance.
Conservation Status
Not threatened or endangered; stable and widespread throughout its natural geographic range.
Interesting Facts
Many orb-weavers consume and recycle their large orb webs daily to recoup protein before spinning a fresh one for the upcoming night.
Photography Tips
Use a macro lens with a flash or diffused lighting to capture the fine spination on the legs and abdominal patterns through a window screen without disturbing the spider.
Identified: 2026-08-27T18:50:45.103062