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Basilica Orbweaver, not Cyclosa bifurca

Posted by August 12th, 2004 at 12:00 am

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Eggs, Orb Weavers

Hi Spiderman!
Ok..Im stumped. Never seen anything like this. I live in Milton, Delaware…….there seems to be 5 round eggcases within the cocoon. Any idea what they might be? I always heard colored spiders were poisionous. Is this the case? Thanks!!
Connie
Delaware

cyclosa bifurca eggs Basilica Orbweaver, not Cyclosa bifurca cyclosa bifurca Basilica Orbweaver, not Cyclosa bifurca

Wow Connie,
Nice photo of Cyclosa bifurca. Here is what Comstock has to say: “The strange form of the abdomen sharply distinguishes this species from the othe species of Cyclosa in our fauna. The abdomen is long; the basal half bears two pairs of humps; the caudal half is more slender and is bifurcate at the tip. The body is green mottled with white; there is a light wavy band on the side of the abdomen; and the abdomen is bordered with a black line above, back of the humps. On the ventral side of the abdomen, there is a bright red spot between the epigastric furrow and the spinnerets. The legs are banded with reddish brown. I found this to be a common species near Miami, Fla. I first found it in the jungle near the shore of the bay, where it made an orb-web with a string of eggsacs across it like a stabilimentum.” Thank you for your wonderful addition to our site, especially since I could not find any photos online.

Correction
November 28, 2010
Today we received a new identification request which led us on an identification search on BugGuide that ended with a new identification for this egg sac configuration:  the Basilica Spider,
Mecynogea lemniscata.

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  1. From Egg Sac of Basilica Orbweaver | What's That Bug? on 28 Nov 2010 at 10:13 am

    [...] because our research has revealed two misidentifications on our website from many years ago.  In 2004, we received a similar image from Delaware that also pictured the spider.  At that time, there was not as much information on the world wide [...]

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