Follow Kitty Kono's adventures as she and her husband Ken and daughter Yumiko return to the U.S. after a year in Tokyo.
Tuesday, June 27, 2017
The Black Swallowtail Caterpillar with Ostemerium
This little sweetie is growing up on my fennel plant. His mom, the Black Swallowtail Butterfly laid her eggs on a leaf nearby the fennel. See those yellow horns on top? That is his Ostemerium, which is a defense mechanism. A little yellow internal organ pops out when the caterpillar feels threatened. (I had to tickle him a little to get the picture.)