Ruby Spotted Swallowtail Caterpillar aggregation in Argentina

Location: Puerto Libertad, Misiones, Argentina (25°54’59.58”S,54°34’44.14”O)
February 7, 2012 2:02 pm
I was wondering if you can identify this larvae for me. The pictures are not very good. Thanks!
Signature: viole

Ruby Spotted Swallowtail Caterpillar Aggregation

Dear Viole,
You are too critical of your photos.  We find them to be quite excellent both in terms of technical quality as well as aesthetic composition.  This social aggregation of caterpillars belong to the species
Papilio anchisiades, commonly called the Ruby Spotted Swallowtail.  The Butterflies of America website has a photo that matches the caterpillars in your photo.  We have posted photos of the caterpillar aggregations of the Ruby Spotted Swallowtail several times in the past.  The Ruby Spotted Swallowtail ranges from Mexico to Argentina.  The adult Ruby Spotted Swallowtail is a lovely butterfly.

Ruby Spotted Swallowtail Caterpillars


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