Thursday, August 4, 2011

Black Swallowtail Butterflies

So far we've had no luck on attracting Monarchs this year but we've had a ton of Black Swallowtails! They are such beautiful butterflies!

Host plants:
  • Carrot
  • Celery
  • Dill
  • Fennel
  • Parsley
  • Queen Anne's Lace

We started out with a few Fennel plants when the first Black Swallowtail butterfly laid eggs in our garden. We ended up raising 13 butterflies and had to go out and buy parsley to keep up with their appetite.

A tiny tiny egg on our fennel (right above my watermark):
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The egg darkens when's it's about ready to hatch. (right below my watermark)
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And a tiny tiny caterpillar is born about 3-5 days after the egg was laid.
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The first butterfly to visit laid 6 eggs. Here are the 6 newborns.Can you find them all?
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They have a lot of growing to do. As they grow, they molt their old skin (and eat it).
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A neat tidbit about the Black Swallowtail caterpillar is its defense mechanism. This little one had wondered away after they had finished off the food in the cage. I was trying to encourage him onto a new piece of food and accidentally poked him. Out came these orange antenna (the osmeterium) and a horrible smell.
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They just get more and more beautiful as they grow.
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Finally, they pick a spot to start working on their chrysalis.
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They can make their chrysalis green or brown depending on where they make it.
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After about 10 days, the chrysalis darkens showing that the butterfly is just about ready to emerge.
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They can be held when they are drying their wings because they can not fly.
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Telling the males from the females is easy. The males have more yellow and the females have more blue on their hindwings.
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Bye bye butterfly!!
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3 comments:

  1. Following you from the Lots of Lovin Blog Hop - cool pics & pretty butterfly! :)

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  2. I love your butterfly posts. I wish we had more luck finding caterpillars.

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    Replies
    1. Thanks for stopping by! Plant hosts plants and nectar plants and the butterflies will come! Seriously. I thought we had a good turn out last year but it's really taken off this year. My Fennel plants have grown huge and at one point this summer it seemed we had a female laying eggs every 2 days or so. We've released about 50 or so butterflies already and have many caterpillars and chrysalises left. Be on the look out for this years' butterfly post later this fall! :)

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