Monarch Caterpillar!!!!!!

I've been waiting all summer to see a monarch caterpillar and here is a nice big one!!  As one of my former students pointed out, "They are Steelers' colors".  Maybe this is why I love them so much?? Though I've seen adult butterflies off and on, this is the first caterpillar on my milkweed.  I sure hope I see lots more.  I have some type of red beetle and an invasive looking yellow jacket on much of my milkweed.  I believe these invasives have hurt the monarch population by interfering with their food supply.