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BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Previous events


Genus Gasteracantha

Spinybacked Orbweaver (Gasteracantha cancriformis) - Gasteracantha cancriformis Spinybacked Orbweaver? - Gasteracantha cancriformis Spinybacked Orbweaver Liquefying Dragonfly - Gasteracantha cancriformis Spinybacked Orb Weaver  - Gasteracantha cancriformis - female Lime green egg sac  - Gasteracantha cancriformis Gasteracantha cancriformis - male St. Andrews egg sac or coccoon on Magnolia grandiflora leaf 2017 1 - Gasteracantha cancriformis Spinybacked Orbweaver - Gasteracantha cancriformis - female
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynae)
Family Araneidae (Orb Weavers)
Genus Gasteracantha
Explanation of Names
Greek gaster (γαστηρ)- "belly" + akantha (ακανθα)- "thorn, spine"
Gender: Feminine
One species in the US
for more information see Gasteracantha cancriformis