Hentz Orb-Weaver, Spotted Orbweaver
Neoscona crucifera
Family Araneidae (Orb-Weavers), Order Araneae. Characterized by building vertical wheel-like webs and having three claws on their tarsi.
Physical Description
The spider exhibits a bulbous, oval-shaped abdomen that is significantly wider and larger than the cephalothorax. The abdomen features distinct muscular indentation pits (sigillae) on the dorsal surface, which form a subtle pattern resembling a face or cross depending on the angle. The body is covered in fine, short setae giving it a slightly textured appearance.
Size Estimate
Body length is approximately 10 to 18 millimeters for adult females, with a leg span reaching up to 35 to 40 millimeters. The specimen shown appears to be a mature or sub-adult female.
Coloration & Markings
Base coloration ranges from yellowish-brown to reddish-brown and grayish tones. The dorsal abdomen features a variable pattern with darker mottling, sometimes showing a leaf-like (folium) design or a cross-like arrangement of spots and lines. The legs are strongly banded with dark brown and light tan rings.
Web Type
Constructs a classic vertical orb web, typically ranging from one to two feet in diameter. These webs feature a sticky spiral for trapping flying insects and are often constructed in the evening and consumed or rebuilt by morning.
Eye Arrangement
Eight eyes arranged in two distinct rows: four smaller central eyes (median eyes) forming a quadrangle, flanked by two pairs of lateral eyes situated close together on tubercles.
Leg Characteristics
Long, robust legs equipped with prominent spines, hairs, and dark brown or black banding rings. The legs are typically held outstretched in a characteristic orb-weaver posture.
Venom & Safety Information
Venom Information
Contains mild neurotoxic and proteolytic venom designed strictly to immobilize small invertebrate prey. It poses no chemical or medical threat to humans.
Medical Significance
Not medically significant. Bites are extremely rare, typically occurring only if the spider is directly squeezed or trapped against the skin. Symptoms are minor and localized, comparable to a mild mosquito bite.
Safety Recommendations
Leave undisturbed if found outdoors. If relocation is necessary, gently guide the spider into a container using a piece of cardstock and release it into a nearby garden or wooded area.
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 lighting attracts flying prey.
Behavior & Temperament
Nocturnal hunters that spend daylight hours hiding in nearby foliage or retreat areas adjacent to their webs, though they can sometimes be seen sitting at the center of the web after dusk. They are docile and very reluctant to bite.
Diet & Prey
Primarily feeds on flying insects such as moths, beetles, mosquitoes, and flies caught in the vertical orb web.
Seasonal Activity
Most active and noticeable during late summer and autumn when adults reach maximum size and females construct egg sacs.
Description
The Hentz Orb-Weaver is a quintessential garden spider known for its nocturnal web-weaving habits and variable brown-and-tan coloration. Often noticed when they build large webs across porches or between outdoor structures in late summer, these beneficial arachnids act as natural pest controllers while remaining completely harmless to humans.
Key Features
Hairy, robust reddish-brown body with a distinctly broad abdomen featuring dorsal indentations (sigillae), banded legs, and the habit of constructing large vertical orb webs.
Similar Species
Other Neoscona species such as Neoscona domiciliorum (Barn Spider) and Araneus diadematus (European Garden Spider). Distinguished by subtle differences in abdominal markings and genital morphology.
Life Cycle
Females construct silken egg sacs in sheltered crevices during autumn, depositing hundreds of eggs inside. Spiderlings overwinter or hatch in spring, undergoing multiple molts to reach maturity by late summer.
Ecological Importance
Serves as a crucial predator of flying insect populations in gardens and residential areas, helping to naturally manage pest species while providing a food source for birds and small mammals.
Conservation Status
Secure and widespread throughout its natural geographic range with stable populations.
Interesting Facts
Many orb-weavers consume their entire web daily to recycle the protein-rich silk proteins before spinning a brand new one just before nightfall.
Photography Tips
Photograph at night using a macro lens and a diffused flash to capture the intricate details of the dorsal markings and the glossy texture of the legs while avoiding harsh shadows.
Identified: 2026-10-23T03:18:57.185515