Spread the Feast Community
July 26- August 4
10 Black swallowtail caterpillars collected, fed dill weed. They like the tender yellow flowers the best. They spit yellow when disturbed. about 1 1/2 cm when found. About 1 1/2 -2 inches when changing into chrysalis. They change colors as they grow larger. One egg hatched out in our tank and so we got to observe the color change from complete black to striped green, black, with yellow spots.
Chrysalis colors range from light green with yellow spots to splotchy brown. We are wondering if these are variations of the type of butterfly, difference between genders, or just camouflage as they mostly match their stick that they are hanging on. But not consistently enough for us to tell for sure.