Marbled Orbweaver
Marbled Orbweaver
Araneus marmoreus
Arachnida
COMMON

Stats

Lifespan
Up to 1 yr
Size
Medium
Diet
Insectivore
Activity
Nocturnal
Social
Solitary
Biome
Temperate forest
Range
North America
Movement
Climbing
Breeding
Egg-laying
Defense
Warning Colors
Status
Common

About

The marbled orbweaver has a swollen, globe-shaped abdomen mottled in orange, yellow, and black in a marbled pattern that can vary widely between individuals. Females build a fresh orb web each night and often retreat to a silk-lined leaf shelter at one edge, tethered to the web's hub by a signal thread.

Life cycle

  1. 1.
    egg sac
    A silk-wrapped egg sac shelters a clutch of eggs until the young are ready to emerge.
  2. 2.
    juvenile
    A spiderling emerges from the egg sac already in miniature adult form and starts catching prey almost immediately.
  3. 3.
    subadult
    A near-adult arachnid molts through several instars, growing larger and developing mature markings.
  4. 4.
    adult
    Fully grown after its final molt.

Learn more

Taxonomy

Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae
Family
Araneidae
Genus
Araneus
Species
Araneus marmoreus