Have You Spotted These Giant Joro Spiders in Your Area?

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The Asian Joro spider, a relative of the native golden orb weaver, has been spreading across the U.S. from Georgia for about a decade. These spiders thrive in temperate climates, allowing them to potentially expand their range beyond the humid Southeast, where the golden orb weaver is typically found. Joro spiders are harmless, with small fangs that rarely penetrate human skin, making bites infrequent and less painful than a bee sting. There are no known reports of allergic reactions to their bites. The discussion also highlights the differences between Joro spiders and other species, such as the common Argiope, noting the distinctive web structures and sizes, with Joro spider webs reaching over 10 feet in diameter. Observations of Joro spiders in various locations are encouraged, as they are becoming more prevalent.
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apologies for the clickbaity title, the Asian Joro spider, a relative of the native golden orb weaver, has been spreading from GA for about a decade. The spiders thrive in Japan's temperate climate, which means they can eventually spread throughout the US, unlike the Golden Orb Weaver, which is limited to the humid and warm Southeast. The spiders are harmless and beautiful -anyone seen one in their area?

adult-female-joro-spiders-can-sometimes-reach-3-in.jpg

more info at:
https://extension.psu.edu/joro-spiders

Jorō spiders do not have medically important bites. The fangs of jorō spiders are small and have difficulty piercing human skin. The spiders themselves are reluctant biters and it can be difficult to make them bite you even when the spiders are handled. The venom is weak, so when bites do occur they are less painful than a bee sting and only produce localized pain and redness that dissipates quickly without intervention. The author could not find any published reports of allergic reactions associated with jorō spider bites, although some people may be allergic to the venom.

This is the native Golden Orb Weaver, can see the difference in coloration:

trichonephila-clavipes.jpg
 
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I've never seen a joro.
If it has a well-formed web with a long zig zag, it's the common Argiope (Garden Spider).
So look for much thinner web.
 
.Scott said:
I've never seen a joro.
If it has a well-formed web with a long zig zag, it's the common Argiope (Garden Spider).
So look for much thinner web.
And much bigger - the Trichonephila genus (Joro and Golden Orb Weaver) webs can be 10+ feet in diameter
 
BWV said:
And much bigger - the Trichonephila genus (Joro and Golden Orb Weaver) webs can be 10+ feet in diameter
That is bigger. I've seen an Argiope web span a four-foot wide path through a field - completely blocking it - because who wants to destroy that kind of art.
 
Went out to a park outside of Houston, was looking for some Golden Orbweavers, but instead found these Argiope:

42348-F25-B00-D-4910-8363-CABE3-F0080-FC.jpg

F731-DEEA-8885-4-E26-8-C1-B-0511-F5270-F8-B.jpg

97-EA539-D-908-C-4928-B836-5-D93-B0-C8716-E.jpg
 
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