What's That Bug? does not endorse extermination

Subject: A gaggle of baby spiders
Location: Vaudreuil-Soulanges, Quebec
August 10, 2012 11:33 am
We found this bunch of baby spiders huddled together on the siding of the house near the edge of our front porch roof. Whenever we touched the bunch they scattered in every direction, and then would slowly make their way back into a huddle. We only found this out by mistake the first time, then did it again for the pics, after that we left the little guys alone 🙂 No mamma spider was in sight, so we have no idea what kind of babies they are. Any ideas?
Signature: Cindy

Orbweaver Spiderlings

Hi again Cindy,
These are spiderlings of an Orbweaver in the genus
Araneus, and since you recently submitted a photo of an adult Orbweaver that we identified as the Marbled Orbweaver, Araneus marmoreus, there is a strong possibility that these spiderlings may be the same species.  Alas, Bugguide does not have any photos that are verified as being the spiderlings of the Marbled Orbweaver.  There are many photos posted on BugGuide that are identified as spiderlings of the Cross Spider, Araneus diadematus, and they look very similar to the spiderlings in your photo, including this image posted to BugGuide.  It is also possible that other species in the genus, including the Marbled Orbweaver,  look very similar as spiderlings.  The best we are able to do on this is a genus identification, meaning they are Orbweaver spiderlings from the genus Araneus.  It is highly likely that they dispersed by ballooning soon after these photos were taken.

Orbweaver Spiderlings

 

What's That Bug? does not endorse extermination
Location: Canada

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