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Synoeca cyanea
Some kind of blue wasp in and their nest it appears, in Misiones, Argentina. Thanks to bayucca for the id! From Wikipedia: Synoeca cyanea, commonly known as marimbondo-tatu, is a swarm-founding social wasp. Native to Brazil and Argentina, S. cyanea is one of the largest and most aggressive species of social wasps and is feared in many rural areas.[
Thanks for the id, bayucca! I didn't have another photo; I was to close to the nest with a telelens, and had no option to move further away.
Vespidae, Polistinae, Epiponini, Synoeca and most probably Synoeca cyanea. Do you have a complete picture of the hive?
http://en.wikipedia.org/wiki/Synoeca
http://www.forum.hymis.de/viewtopic.php?...
https://lh6.googleusercontent.com/-MOvPF...
https://www.youtube.com/watch?v=GgD2BLuz...
Please consider adding this spotting to the Animal Architecture mission at http://www.projectnoah.org/missions/8082...