I’ve told you before that George and I rescue the anise swallowtail caterpillars and eggs that we find on fennel plants. The fennel gets rangy this time of year and many people cut it down, not knowing that they’re killing caterpillars. We bring the eggs and caterpillars inside, feed them fennel until they pupate into chrysalises, then release them after they emerge as adult butterflies. I rescued a large caterpillar and five eggs the other day from a parking lot in Berkeley, and the eggs have now all opened. This one is about 2 mm long.
Today while searching some fennel near our house I found another insect – ladybugs – happily wandering around the fennel flowers, probably looking for aphids to feed on. Here’s one with a few of the characteristic black spots, and very intense red-orange color.
Another one’s spots were barely visible, and its color was much less red.
This one was moving from one flower to another.
Some of the flowers had several ladybugs.
Does fennel grow on your property? Please make sure to check for butterfly eggs and caterpillars, and for other helpful insects like ladybugs, before you cut it down.
If you follow my posts, you know that George and I raise and release butterflies. George plants larval hosts to attract egg-laying females to the garden, and when we’re lucky we find the eggs and bring them inside to raise them. Most recently we’ve had a flurry of anise swallowtail butterflies visit the garden and lay eggs on the fennel. We’ve released about 10 of the butterflies in the past few months. We usually find the tiny eggs, which are about the size of the head of a pin…
… or the caterpillars when they’re relatively small (these guys were about a half inch long).
Today, I found a caterpillar which had thus far escaped our not-so-eagle-eyes. It looks to me like it’s ready to form its chrysalis. I brought it inside to protect it from predators and bad weather. I’ll let you know when it emerges.
I recently shut down my smugmug site, where I had galleries of my photos showing the entire life cycle of the anise swallowtail butterfly and the monarch butterfly. I am reconstructing those on my website and will let you know when they’re up. Hopefully letting you know that will motivate me to get it done more quickly!