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Fun Facts
Did You Know?
Star-bellied orb weavers build webs that intercept the flying insect community of open and edge habitats: flying beetles, various flies, small moths, and hymenopterans crossing between garden and shrub vegetation. Web height ranges from knee level to shoulder height depending on available anchor points, with higher placement at sites where taller vegetation or structures provide anchor points above the garden shrub layer
If This Animal Could Talk...
"Watch closely, respect my space, and let my habitat explain the rest of the story."
Acanthepeira stellata, the star-bellied orb weaver, carries a spiny abdominal outline in a different configuration from the arrow-shaped orb weaver's two-spine profile. The star-bellied species shows multiple small projections around the abdomen's perimeter that produce a toothed or starred silhouette when viewed from above, combined with a color pattern of brown, tan, and darker markings that provides woodland camouflage despite the unusual silhouette. The combination of spiny outline and woodland-match coloration produces a spider that does not quite look like what observers expect from either category.
Acanthepeira stellata builds medium-sized orb webs in garden vegetation and woodland edges throughout North Louisiana from summer through fall, peaking in abundance and visibility in late summer when adults reach maximum size. Unlike the arrow-shaped orb weaver's preference for shaded woodland interior positions, star-bellied orb weavers build more consistently at open and edge positions in full sun or light shade, making them garden-findable alongside the other late-summer garden orb weavers at North Louisiana residential and agricultural sites.
A Few More Facts
How they hunt and forage: Flying insects at the size range of a one-to-two-foot orb weaver web: small to medium flies, small beetles, flying aphids, and various other arthropods at the size that sticky spiral threads can hold until the spider arrives to wrap and immobilize.
Live birth or eggs? no
When young are born: First-of-year records in June and July at garden sites document the early adult emergence before the main population peak in August and September.That June-to-October window overlaps with multiple other garden orb weaver species at North Louisiana sites, making August and September the period of highest garden orb weaver diversity when star-bellied orb weavers share position types with red-femured orb weavers, barn spiders, and various other medium orb weavers simultaneously.
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Accessibility
Accessibility
Star-bellied orb weaver webs in garden vegetation and edge shrubs from summer through fall present for observation at knee-to-shoulder height from maintained garden paths. The spiny abdomen outline identifies mature females at close range without requiring detailed pattern examination. Open garden and shrub edge habitats throughout North Louisiana from June through October provide the habitat that concentrates the species at accessible observation positions.
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Frequently Asked Questions
Does Star-Bellied Orb Weaver live in North Louisiana?
Yes. Acanthepeira stellata builds medium-sized orb webs in garden vegetation and woodland edges throughout North Louisiana from summer through fall, peaking in abundance and visibility in late summer when adults reach maximum size. Unlike the arrow-shaped orb weaver's preference for shaded woodland interior positions, star-bellied orb weavers build more consistently at open and edge positions in full sun or light shade, making them garden-findable alongside the other late-summer garden orb weavers at North Louisiana residential and agricultural sites.
At North Louisiana garden positions where the same insectivorous bird species that encounter spiny orb weavers also encounter smooth-bodied orb weavers, the predation differential between the two body types would need to be measured directly to confirm the benefit.
How do you identify Star-Bellied Orb Weaver?
Adults span three-eighths to five-eighths of an inch. The abdomen shows a bumpy, toothed outline with multiple blunt projections around the perimeter, particularly pronounced at the anterior shoulders and posterior tip positions. Brown and tan coloration with variable darker pattern matches the bark and dry leaf substrates that the spider uses for daytime retreat between web construction periods. The web matches the standard small orb weaver plan: circular spiral of one to two feet, hub centered, retreat at the web edge or on adjacent bark.
What does Star-Bellied Orb Weaver eat?
Flying insects at the size range of a one-to-two-foot orb weaver web: small to medium flies, small beetles, flying aphids, and various other arthropods at the size that sticky spiral threads can hold until the spider arrives to wrap and immobilize
Is Star-Bellied Orb Weaver dangerous to people?
No. This species is not dangerous to people when it is observed without handling or disturbance
