i'm so excited!
I think... stressing THINK... I have an early instar Giant Swallowtail caterpillar on my rue! I was taking cuttings for my BST's and just selecting a variety (dill, fennel, parsley and rue) and then later went to check on them to make sure they had all transferred to the new plants. I thought I had checked over the cuttings pretty closely to make sure I wasn't introducing any predators (ie spiders).... anyway while checking I see this early instar cat on the rue that I knew wasn't in my habitat before. So I look closely and notice it was slightly different color than a BST... look more closely and it has little spikes on it too! I'm going to try to take my macro lens out there and get a picture of it so you can help me confirm! Please cross your fingers for me - I've never even seen a GST in person - let alone one in my yard, and never ever dreamed they'd lay eggs on the rue!
Can you tell I'm about to explode with EXCITEMENT???!!! LOL