Location: Northeast Mexico
May 16, 2014
Yes, I guess it wasn’t that caterpillar. A bird must have taken it or something. It kept coming back for that day, especially on the parsley. The first pictures is among the best I could get. It was the black swallowtail from here http://www.iwallpapersfive.com/eastern-black-swallowtail-butterfly-with-a-grateful-prayer-and-a-thankful-heart-eastern-black.html/eastern-black-swallowtail-butterfly-with-a-grateful-prayer-and-a-thankful-heart-eastern-black-2
Anyway, I later found a quite a few caterpillars on the parsley that look exactly like those of the eastern black swallowtail blog post, so maybe those will become that black and blue butterfly.
A couple of the caterpillars were good sized, some were very small, but they have all kept growing. Right now you can see many at different stages, here I send some pictures.
I found a chrysalis on a crate right by where I had found the first bigger caterpillar, the one that was possibly a tiger swallowtail, maybe that one will come out.
This definitely represents a different Swallowtail species than your previously submitted image. This does appear to be a female Black Swallowtail (females have blue markings on wings) and she appears to be laying eggs. The caterpillar does appear to be that of a Black Swallowtail feeding on parsley. Since you are in Northeastern Mexico, it is entirely possible that you live within the range of the Black Swallowtail. Black Swallowtail Caterpillars are known as Parsley Worms.
Thank you Daniel! It’s been fun trying to keep up with all these bugs..