Orbweaver from Iguazu Falls

Subject: Spider name
Location: Iguazu falls national park, Argentina/Brazil
January 31, 2013 8:53 am
I was on holidays in the beautiful Iguazu falls this summer. I saw a lot of these spiders and butterflies. However, after some research on the internet, I have been unable to find the exact scientific name. Could you please help me?
Signature: Filipe De Vadder


Hi Filipe,
Your spider is an Orbweaver, most likely in the family Araneidae.  We haven’t the time right now to research the species name.

Update:  February 1, 2013
Cesar Crash from Insetologia Blog wrote in that this appears to be a species in the genus
 Alpaida.  Based on this photo on EcoRegistros, he might be correct.

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