Hentz Orb-Weaver, Spotted Orb-Weaver
Neoscona crucifera
Araneidae (Orb-Weavers), Order Araneae. Key family characteristics include building vertical circular webs, having eight similar-sized eyes in two rows, and often possessing a bulky abdomen in females.
Physical Description
The spider has a distinctively large, bulbous, oval-to-round abdomen that overhangs the cephalothorax. The cephalothorax is smaller, covered with fine, silky hairs. The body texture is hairy, and the visible specimen is a robust adult female, showing pronounced sexual dimorphism as males are significantly smaller and slender.
Size Estimate
Body length ranges from 9 to 18 millimeters for females, with a leg span reaching up to 30 to 40 millimeters. This specimen appears to be a fully grown adult female.
Coloration & Markings
Base coloration varies from yellowish-brown to reddish-brown and grayish tones. The large abdomen features a mottled pattern with darker brown or black markings, sometimes forming a vague cross or leaf-like pattern, flanked by lighter spots. The legs show distinct dark banding.
Web Type
Builds a classic vertical orb web made of sticky silk, typically constructed in evening hours. The web is a large, circular spiral design used to intercept flying insects, often rebuilt nightly.
Eye Arrangement
Eight small eyes arranged in two horizontal rows of four on the anterior portion of the cephalothorax, typical of the orb-weaver family Araneidae.
Leg Characteristics
Long, robust legs featuring prominent dark and light banding with visible spines and hairs. The legs are typically spread wide in a defensive or waiting posture on the web.
Venom & Safety Information
Venom Information
Contains mild neurotoxic venom tailored for paralyzing small invertebrate prey. It poses no chemical or medical threat to humans.
Medical Significance
Harmless to humans. Bites are extremely rare, occur only if the spider is directly squeezed or trapped against the skin, and typically result in minor, transient localized pain or redness similar to a mild mosquito bite.
Safety Recommendations
No special safety measures needed. If found indoors, gently relocate the spider outside using a cup and a piece of paper. Leave undisturbed in outdoor gardens.
Habitat & Behavior
Habitat & Range
Found widely across North America, particularly in the eastern and central regions. Prefers gardens, woodland edges, porches, and exterior walls of buildings where outdoor lighting attracts flying prey.
Behavior & Temperament
Nocturnal web-weaver that often retreats to a nearby hiding spot or sits tightly in the web center during dusk and night. Docile and non-aggressive toward humans, typically retreating or dropping to the ground if disturbed.
Diet & Prey
Feeds primarily on flying insects such as moths, beetles, mosquitoes, flies, and occasional small wasps caught in its orb web.
Seasonal Activity
Most active and noticeable during late summer and autumn when females reach maximum adult size and construct prominent webs.
Description
The Hentz Orb-Weaver is a quintessential garden spider, instantly recognizable by its large, patterned, bulbous abdomen and masterfully spun nocturnal orb webs. As a master architect of the night, it spends its evenings waiting patiently for unsuspecting flying insects. While its appearance can be intimidating to the uninitiated, this beneficial arachnid is completely harmless to humans and serves as a natural pest controller around homes and gardens.
Key Features
Large, bulbous, mottled-brown abdomen, hairy legs with dark banding, and construction of a large vertical orb web in outdoor areas, particularly near lights.
Similar Species
Other orb-weavers such as Neoscona domiciliorum (The Redfemur Orb-Weaver) and Araneus diadematus (European Garden Spider). Distinguished by subtle differences in abdominal markings and exact coloration tones.
Life Cycle
Mating occurs in late summer and autumn. Females lay eggs wrapped in silken egg sacs attached to bark or structures, overwintering as eggs or spiderlings. Adults complete their annual life cycle by late autumn.
Ecological Importance
Acts as a major biological control agent by consuming large quantities of flying agricultural and household insect pests, helping to maintain ecological balance.
Conservation Status
Not evaluated by the IUCN, but populations are secure, widespread, and highly adaptable to human-altered environments.
Interesting Facts
Many orb-weavers consume their entire web each morning to recycle the protein-rich silk proteins before resting through the day.
Photography Tips
Use a macro lens with natural side lighting or a diffused flash to highlight the intricate patterns on the abdomen. Photograph at night when the spider is active in its web, maintaining a safe distance to avoid causing it to drop.
Identified: 2026-09-20T00:39:40.502981