Very good news.
Sat. night at 10pm 7 Monarch caterpillars were fed vegetables (each caterpillar only got 1 kind.) They jumped on the vegetables and devoured them because they were hungry.
They had been eating and eating and eating for a 3 1/2 days.
Sunday, the caterpillars didn't move much. They weren't eating hardly at all. I was worried that they had gotten food poisoning.
However, I did notice that the 2 caterpillars being fed yellow squash seemed to like it a lot.
When the caterpillars were moving so little, I gave each one (I think) a milkweed leaf.
I put zucchini peel in each container (except one caterpillar only fed milkweed) since that vegetable changed the consistency and color of the poop least. Those fed yellow squash had reddish-orange liquidy poop.
But I noticed the 2 in the yellow squash container almost seemed to like yellow squash better than milkweed (or zucchini peel). They stayed on the squash (peel) and seemed to be eating it instead of milkweed.
By the way, I believe what is called "telegraph cucumber" in New Zealand is called "English cucumber" in the U.S. and is quite easy to buy. (They look the same in the photos, and are described the same way.)
I believe we are the first people in the world to report that Monarch caterpillars can eat yellow squash, and that they can pupate after eating yellow squash.
So Sunday night at 7pm the caterpillars climbed to the top of the (yogurt) containers and started making white silk thread on the plastic (cellophane) wrap on top.
At 9pm, they formed into J shapes.
This morning (Monday) at 9am, 3 of them turned into chrysalises.
The first one to pupate was one that was fed yellow squash peel.
The second one to pupate was fed zucchini peel.
The third one to pupate was fed English cucumber peel.
There are 2 more hanging as J's.
We are exceedingly pleased because the only thing we've done before in terms of raising butterflies is raising 4 painted ladies from the kit.