URGENT question (respond ASAP!!!)

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URGENT question (respond ASAP!!!)

Postby harpo787 » Wed Apr 19, 2006 7:06 pm

I've lost (and found) a caterpillar. The urgency is that it's in J form, but in a rather odd spot.

Image

It's "glued" itself on a vertical bar! When I found it, it wasn't in J format (but did have the silk button down)...I touched it to attempt to remove it and it curled right up. It has since "relaxed" to how you see it in this pic.

Do you think it'll form it's pupa ok there? Probably a bad idea to move it until it's in a solid pupa?

Thanks!
harpo787
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Postby Sarah » Thu Apr 20, 2006 11:38 am

While it isn't an ideal spot, your caterpillar will probably be ok. For some reason not all caterpillars hang in a good spot and some do pupate against a surface and end up with a slightly flat spot on one side. However, most of these butterflies do emerge successfully. The best time to move it is after it has pupated and hardened - about 48 hours after pupation. There are several methods for moving a chrysalis and preparing it for emergence.

You can use a piece of dental floss to hang it up or you can help the pupa emerge laying down. For the dental floss method: gently tie the floss around the cremaster (the black part) and use a small dab of glue to make sure it doesn't come undone. Be careful not to get any on the chrysalis. You can then hang the chrysalis anywhere it is convenient and the butterfly can emerge as usual. You should be sure to place an old towel or paper towel underneath because the butterflies do excrete a red substance when they emerge.

Another emergence method is to place the chrysalis on a rough surface, like a paper towel or old washcloth, underneath a basket or a container with mesh screening stapled inside. The rough surface will help the butterfly pull itself over the the basket/screening to climb up and dry its wings. You could also consider lining a jar or aquarium with screening or old towels. This will also give the butterfly a good surface to climb up and dry its wings.

Good luck!
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Postby harpo787 » Thu Apr 20, 2006 6:28 pm

Well, I left the cat alone last night and went to bed, but set my alarm clock an hour early because I wanted to see how hot the metal railing could get. Unlike the first cat who's on the bottom of it and only in contact with the railing by the cremaster, this one as you could see was actually resting against the railing on its side.

Well, good thing I set the alarm early (and I still awoke a half hour before the alarm), as I looked out the window, the cat was still attached, but seemed to have reversed the J form where it seemed to be reaching out. Just above it at the top of the railing was a blue jay! I scared the blue jay off and decided to do an emergency "surgery" to move the cat. As of that point, it had not yet begun to shed it's final skin. I had no idea how difficult it would be!

As I was slicing with a credit card, I felt like I was making no progress and worse, felt like I was hurting the cat somehow. Well, after a bit of struggle I finally managed to get it free. It had curled back up into an O shape, so I grabbed the bit of silk that was dangling from the cremaster and held on to it by that and it sort of drooped back to the J shape.

So there I stood with a cat hanging on...and I realized I had no way to attach it. I couldn't tie a knot of any kind with that little amount of "string" on the end, I had no glue, I'd even thrown out an old roll of tape from the last hurricane that had gone bad. Could I just sit there and hold it until it molted? Nope. Looking around...I spotted a sticker on one of the plants that I bought a week ago. Now, where to hang it from? The end results:

Image

I went downstairs, had some breakfast and about an hour later I came back up:

Image

So it seems you can move it while it's still a cat, but it's probably not the best idea. Oh yeah...you can see on the top of the second pic there, there's left over "skin" from the cat. I didn't remove that until about an hour ago. I figured I'd let the pupa harden first before I mess with it.
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Postby dzyg » Fri Apr 21, 2006 9:12 am

Wow, glad you save the cat from the Blue Jay and glad you figured out what to do with it too! I don't know if I would of been so brave as to try to move it, I am glad it worked! I can't wait until I can go searching for cats again, doesn't happen around here until July usually though.
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Postby harpo787 » Fri Apr 21, 2006 9:41 am

dzyg: well, it wasn't really a matter of bravery...I saw the blue jay and just jumped into action. I thought it's possible that moving it during that phase could be bad news, but I wasn't sure of it. However, I WAS sure that leaving it there with a blue jay knowing about it was almost certain death.

Heck, you can tell it's not bravery...there was no time to think! That's why I got stuck wondering what I was supposed to do.

I actually had to do another transfer today. I had a pupa hatch, and the one I JUST transferred is a day or two behind. It's out of the confinement area, so I knew sooner would be better. You can see more about it at my little "diary" entries over at "My Monarch Experience"...it's titled something like A Second Story Garden. I'm going to be putting up my latest entry today at some point.
harpo787
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Posts: 105
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Location: S. Florida

Postby Keith Petrosky » Sat Apr 22, 2006 2:53 pm

Wow, quick thinking, glad you saved the caterpillar.
Keith Petrosky
 


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